WEBVTT
Kind: captions
Language: en

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Hello and welcome to No Effort November,

00:00:03.043 --> 00:00:05.143
a series of videos for the month of November

00:00:05.143 --> 00:00:08.416
in which I repeatedly commit to the notion
of simpler videos

00:00:08.416 --> 00:00:10.639
then swiftly fail spectacularly.

00:00:10.639 --> 00:00:13.750
It’s a bit of a tradition around here and
we’re mixing things up

00:00:13.750 --> 00:00:16.995
by including a segment in an ongoing series.

00:00:16.995 --> 00:00:18.323
How novel!

00:00:18.563 --> 00:00:21.256
You’re right, there’s no reason to have
made this introduction

00:00:21.256 --> 00:00:22.918
but too bad I already did.

00:00:22.918 --> 00:00:24.455
Again, it’s traditional.

00:00:24.749 --> 00:00:29.919
So, I just made a video about the origins
and early days of photography.

00:00:29.919 --> 00:00:32.476
If you haven’t seen it there’s a clicky thing.

00:00:32.476 --> 00:00:34.515
And links are everywhere else, too.

00:00:34.515 --> 00:00:36.474
We were using this old camera,

00:00:36.474 --> 00:00:37.681
took some pictures,

00:00:37.681 --> 00:00:39.320
and finally unloaded it.

00:00:39.320 --> 00:00:42.839
Then I abruptly stopped and here we are!

00:00:42.839 --> 00:00:45.951
This roll of 120 film is ready for development

00:00:45.951 --> 00:00:48.912
and that is what we’re going to do in this video.

00:00:48.912 --> 00:00:55.417
By the way, apparently I need to clarify that
the 120 film format is still very much in production -

00:00:55.417 --> 00:01:00.126
in fact here is some brand new
film I have in both color and black-and-white .

00:01:00.126 --> 00:01:03.629
So destroying this roll wasn’t hurting anything precious.

00:01:03.629 --> 00:01:07.575
Also it’s not that I find 120 film to be
a terrible format;

00:01:07.575 --> 00:01:12.660
it’s just that this batch of this particular film stock I bought
on eBay a decade ago

00:01:12.660 --> 00:01:16.728
absolutely is so ruining a roll left me with no hard feelings.

00:01:16.728 --> 00:01:19.560
I have no experience with this brand’s current production

00:01:19.560 --> 00:01:24.145
and from what I’ve absorbed in comments it’s probably better these days.

00:01:24.145 --> 00:01:25.401
But anyway…

00:01:25.867 --> 00:01:29.399
We’re going to be subjecting this roll of
film to a surprisingly similar

00:01:29.399 --> 00:01:30.824
(though heavily refined)

00:01:30.824 --> 00:01:34.003
chemical process to Daguerre’s original method.

00:01:34.003 --> 00:01:39.478
First, though, it’s important that we understand
what this and other modern film’s emulsion

00:01:39.478 --> 00:01:41.325
- that’s the light-sensitive layer -

00:01:41.325 --> 00:01:43.110
actually is.

00:01:43.110 --> 00:01:45.664
You may have heard the term “grain” before.

00:01:45.664 --> 00:01:51.339
Possibly from me back when I made that video
on why old movies are HD and analog video isn’t.

00:01:51.339 --> 00:01:56.935
The gelatin-based emulsion carries a whole
bunch of light-sensitive silver halide crystals within it.

00:01:56.935 --> 00:01:58.045
Like a soup.

00:01:58.045 --> 00:02:00.095
But very congealed.

00:02:00.095 --> 00:02:03.033
Those crystals literally are the grain

00:02:03.033 --> 00:02:06.604
and will eventually form the final image after development.

00:02:06.604 --> 00:02:13.186
But right now they’re still almost entirely
as they were before the exposure even happened.

00:02:13.186 --> 00:02:15.209
See, when it was exposed in the camera,

00:02:15.209 --> 00:02:19.663
the parts of the emulsion that were hit with light
did undergo reduction reactions —

00:02:19.663 --> 00:02:24.051
that’s what happens when silver halides get hit with photons.
 But…

00:02:24.051 --> 00:02:25.727
not in great amounts.

00:02:25.727 --> 00:02:30.927
In fact, the exposure to light when an image
is taken hardly changes the film at all

00:02:30.927 --> 00:02:32.679
on a chemical level.

00:02:32.679 --> 00:02:38.809
Only tiny tiny bits of the silver halide crystals — literally 
just a few molecules here and there —

00:02:38.809 --> 00:02:41.761
were reduced to pure silver in the exposure.

00:02:41.761 --> 00:02:47.070
That is why the image captured on the film
right now is called the latent image.

00:02:47.070 --> 00:02:49.936
It’s chemically there, but not visible yet.

00:02:49.936 --> 00:02:54.717
Although it’s not much, the individual halide
crystals that were hit with sufficient light

00:02:54.717 --> 00:02:58.930
now have what you might call a seed of pure
silver within them.

00:02:58.930 --> 00:03:03.158
And a chemical developer will use that seed
as a catalyst of sorts

00:03:03.158 --> 00:03:08.693
and convert the entire crystal 
(and any others that have that silver seed) into pure silver

00:03:08.693 --> 00:03:10.338
which will makes it visible.

00:03:10.338 --> 00:03:12.199
In a somewhat weird way,

00:03:12.199 --> 00:03:18.499
black and white film is sort of a random distribution
of physical one-bit pixels.

00:03:19.166 --> 00:03:23.779
Yeah, that’s kind of a stretch, and might
sound weird coming from me

00:03:23.779 --> 00:03:29.762
given that I made a video on why phosphor dots in color CRTs
are decidedly not pixels.

00:03:29.762 --> 00:03:33.163
But because of how the grain interacts with the developer,

00:03:33.163 --> 00:03:36.249
whether or not you can see an individual grain in the end

00:03:36.249 --> 00:03:40.756
is more or less down to whether or not it got hit with light in the exposure.

00:03:40.756 --> 00:03:43.326
When stepping back and looking at the whole
image,

00:03:43.326 --> 00:03:46.828
the density of the crystals and thus the apparent darkness

00:03:46.828 --> 00:03:50.908
is affected by how much light hit that spot of the film.

00:03:50.908 --> 00:03:56.374
Dark areas got hit with a lot of light so
most of the grains become activated and developed,

00:03:56.374 --> 00:04:02.446
whereas light areas had few grains get hit
so only a few show up here and there.

00:04:02.446 --> 00:04:06.896
This is, by the way, the reason faster films tend to be grainier.

00:04:06.896 --> 00:04:09.803
For a film stock to be more sensitive to light,

00:04:09.803 --> 00:04:18.329
the halide crystals in the emulsion need to somehow be more prone to undergoing that initial photon-induced reduction reaction.

00:04:18.329 --> 00:04:22.462
In this world of crystals and photons it’s
all a game of probabilities,

00:04:22.462 --> 00:04:28.069
and the simplest way to increase the chance that a crystal
will undergo sufficient reduction in the exposure

00:04:28.069 --> 00:04:29.879
is to make it bigger.

00:04:29.879 --> 00:04:35.084
Making the targets larger means less light
is needed to capture a latent image

00:04:35.084 --> 00:04:41.399
simply because there are more chances for each crystal
to be affected given the same amount of incoming light,

00:04:41.399 --> 00:04:45.713
but the downside is that larger targets
limit the resolution of the film

00:04:45.713 --> 00:04:50.338
because each element of the image’s underlying structure
is physically larger

00:04:50.338 --> 00:04:53.409
and so there are fewer of them in a given area.

00:04:53.409 --> 00:04:58.774
So, now that we know those basics, we need
to get this film in contact with a chemical

00:04:58.774 --> 00:05:03.550
which will finish the job and convert the
grains with silver seeds into pure silver.

00:05:04.537 --> 00:05:05.662
But how?

00:05:05.662 --> 00:05:10.493
We can’t expose it to more light or the
image will be damaged or destroyed.

00:05:10.493 --> 00:05:12.872
Well, we use one of these.

00:05:12.872 --> 00:05:15.999
This is a developing tank and it’s pretty clever.

00:05:15.999 --> 00:05:20.765
This lid here is light-tight yet allows liquids
to travel through it freely.

00:05:20.765 --> 00:05:23.504
This is done by creating a simple maze.

00:05:23.504 --> 00:05:25.918
Since light can’t bend around corners,

00:05:25.918 --> 00:05:30.466
if you create a path with a series of 90 degree turns it won’t get through.

00:05:30.466 --> 00:05:34.498
Make the walls of the path black and you make
it even more effective.

00:05:34.498 --> 00:05:37.663
This arrangement is often called a light trap.

00:05:37.663 --> 00:05:42.559
Which is annoying because entomologists are
clogging up the Googles with that search term.

00:05:42.559 --> 00:05:47.234
There are a few different designs out there,
but the cross-section of this lid looks like this -

00:05:47.234 --> 00:05:51.451
liquids can easily get around these
bends, but light can’t.

00:05:51.451 --> 00:05:53.517
Dead simple yet effective.

00:05:53.517 --> 00:05:57.912
By the way you can make a doorless entryway
to a darkroom using this method

00:05:57.912 --> 00:05:59.809
but hold your horses we’re not there yet.

00:05:59.809 --> 00:06:02.972
Inside the tank are a couple of film reels.

00:06:02.972 --> 00:06:07.501
This tank can develop up to two rolls of 35mm
film at a time,

00:06:07.501 --> 00:06:15.142
but the reels can be expanded in width to accommodate 120 and other 60mm wide roll film formats at its largest width,

00:06:15.142 --> 00:06:19.021
and there’s also an intermediary width to accommodate 127 film,

00:06:19.021 --> 00:06:22.542
a not-quite-dead format that’s barely hanging on.

00:06:22.542 --> 00:06:26.152
That film is 46mm wide, by the way.

00:06:26.152 --> 00:06:30.292
Of course, you still have to get the film
onto this reel and into the tank.

00:06:30.292 --> 00:06:33.276
And that has to be done in complete darkness.

00:06:33.276 --> 00:06:36.595
Now you can choose to do this in a completely dark room.

00:06:36.595 --> 00:06:38.547
Here’s an approximation of what that looks like.

00:06:39.107 --> 00:06:42.240
[crinkly shuffling noises]

00:06:42.960 --> 00:06:47.518
Or you can put the tank, reel, and your film
into a changing bag like this.

00:06:47.518 --> 00:06:50.845
A double-zipper creates a light-proof seal on one end

00:06:50.845 --> 00:06:56.286
and sleeves with little elastic-lined holes for your arms on the other allow you to fiddle around in there

00:06:56.286 --> 00:06:59.036
without worrying about light hitting your film.

00:06:59.036 --> 00:07:02.299
Of course, that seal around your arms isn’t perfect by any means

00:07:02.299 --> 00:07:05.129
so you probably don’t want to do this outside in the sun

00:07:05.129 --> 00:07:08.318
but under most indoor lighting situations it’s fine.

00:07:08.318 --> 00:07:11.119
But what are you actually doing in the dark?

00:07:11.119 --> 00:07:15.330
Well, since I’ve already ruined this roll, I can show you.

00:07:15.330 --> 00:07:18.848
First, though, a note on developing tank styles.

00:07:18.848 --> 00:07:22.532
Generally they’re divided into stainless
steel and plastic tanks,

00:07:22.532 --> 00:07:27.969
and personally I find plastic tanks the way to go because of
these film reels.

00:07:27.969 --> 00:07:29.837
They’re self-loading.

00:07:29.837 --> 00:07:33.619
A simple arrangement consisting of a captive
ball bearing and a ramp

00:07:33.619 --> 00:07:36.076
creates a sort of ratchet mechanism.

00:07:36.076 --> 00:07:39.630
Film can easily slip past the ball bearing
when moving forward,

00:07:39.630 --> 00:07:44.022
but if it moves backward it rolls the ball bearing up the ramp,

00:07:44.022 --> 00:07:46.844
causing it to jam the film in place.

00:07:46.844 --> 00:07:50.472
By allowing each side of the reel to move slightly,

00:07:50.472 --> 00:07:54.830
a simple repetitive twisting motion is all it takes to load the film.

00:07:54.830 --> 00:07:55.928
Here is a...

00:07:55.928 --> 00:08:00.737
blank roll of 35mm film I developed accidentally one time.

00:08:00.737 --> 00:08:03.818
Because it’s clear it helps reveal how this works.

00:08:03.818 --> 00:08:06.205
Each time I move the right side forward,

00:08:06.205 --> 00:08:11.991
the ball wants to roll backwards but in doing so rides up the ramp and jams against the film.

00:08:11.991 --> 00:08:14.065
So it pushes the film forward.

00:08:14.065 --> 00:08:20.368
On the stationary left side, the ball rolls forward as the film moves 
and so leaves room for it to pass.

00:08:20.368 --> 00:08:25.243
However, when I return the right side to the
original position, the roles are reversed.

00:08:25.243 --> 00:08:31.530
The film moves back slightly, causing the
left-hand ball bearing to roll up the ramp and jam the film in place,

00:08:31.530 --> 00:08:35.007
and now the right side slips past without issue.

00:08:35.007 --> 00:08:39.793
Just do this twisting motion a bunch of times
and the reel pushes the film onto itself,

00:08:39.793 --> 00:08:43.315
with the film following these ridges in a
spiral to the center.

00:08:43.834 --> 00:08:48.369
So, for this 120 film all we need to do is
unlock the reel,

00:08:48.369 --> 00:08:52.459
pull the sides apart to their widest position, 
lock it again,

00:08:52.459 --> 00:08:54.570
and now it’s ready to be loaded.

00:08:54.570 --> 00:08:57.688
One thing I always make sure to do is use
a toothpick or something

00:08:57.688 --> 00:09:03.150
to ensure the ball bearings can move freely - often they get
kinda stuck when the reel dries

00:09:03.150 --> 00:09:05.186
and that’s not good.

00:09:05.186 --> 00:09:09.598
While you weren’t looking, I wound this
destroyed roll onto a second spool

00:09:09.598 --> 00:09:12.924
so it’s positioned as if it were run through a camera.

00:09:12.924 --> 00:09:16.389
And now I’ll show you what I’m about to do inside this bag.

00:09:16.709 --> 00:09:21.390
I’ll start unrolling the paper and keep
going until I get to the actual film.

00:09:21.630 --> 00:09:24.467
On this end it’s not taped to the paper.

00:09:24.467 --> 00:09:30.362
Now I’ll carefully grab the end of the film
and slide it into the film reel like so.

00:09:30.949 --> 00:09:34.499
The backing paper always makes this a little
chaotic but we’re gonna do the same

00:09:34.499 --> 00:09:40.283
twisting motion that we just did and the ball bearing ratchet ramp things
will do their magic.

00:09:40.283 --> 00:09:46.679
Eventually we’ll reach the end and we have
to cut off this bit of tape to free the film entirely from the paper.

00:09:46.679 --> 00:09:49.577
Then we just keep twisting to make sure it’s
completely loaded

00:09:49.577 --> 00:09:52.260
and it’s ready to go into the tank.

00:09:52.260 --> 00:09:55.860
The reel needs to go onto this spool thing
before we do that, though -

00:09:55.860 --> 00:09:59.196
this is actually an important part of the tank’s light-tightness,

00:09:59.196 --> 00:10:03.997
as this pokey bit will go inside of it and form a light maze for the fill hole.

00:10:03.997 --> 00:10:06.739
There’s a retaining ring that I... can’t find right now

00:10:06.739 --> 00:10:09.799
which you can clamp onto the spool to keep the reel from riding up

00:10:09.799 --> 00:10:13.647
but I don’t really need it because of the style of development I use.

00:10:13.647 --> 00:10:18.987
I’ll talk about that in just a moment but
now I’ve got to do what I just showed you inside this bag.

00:10:18.987 --> 00:10:20.680
Gotta make sure I have the film,

00:10:20.680 --> 00:10:22.980
a reel opened up to the 120 position,

00:10:22.980 --> 00:10:24.101
a pair of scissors,

00:10:24.101 --> 00:10:25.044
the tank bottom,

00:10:25.044 --> 00:10:26.103
the spool doohickey,

00:10:26.103 --> 00:10:28.765
and the lid all inside the bag.

00:10:28.765 --> 00:10:30.294
Now I’ll zip it up.

00:10:30.294 --> 00:10:31.431
Zip it up again.

00:10:31.431 --> 00:10:35.555
Stick my arms in there, and feel around for
everything and just get going.

00:10:35.555 --> 00:10:36.886
Eventually…

00:10:36.886 --> 00:10:39.603
Tada! Film ready for developing.

00:10:39.603 --> 00:10:42.654
And now we’ll get to Steve Ballmer’s favorite part.

00:10:42.654 --> 00:10:47.833
Here are just a few of the many black and
white film developers available out there.

00:10:47.833 --> 00:10:53.500
We’ve got the ol’ mainstay Kodak D-76
(though this pouch is long-expired),

00:10:53.500 --> 00:10:55.670
Arista Premium film developer,

00:10:55.670 --> 00:10:57.003
Adox Adonal,

00:10:57.003 --> 00:10:58.897
and R09 One Shot -

00:10:58.897 --> 00:11:01.809
those last two are purportedly the same thing.

00:11:01.809 --> 00:11:04.153
But there are so many more out there,

00:11:04.153 --> 00:11:09.744
and people have also been making their own concoctions for about as long as film photography has existed.

00:11:09.744 --> 00:11:12.659
There are even formulations using instant coffee,

00:11:12.659 --> 00:11:16.988
and so-called caffenol has long been thriving in the homebrew scene.

00:11:16.988 --> 00:11:20.866
These chemicals have a very delicate balancing
act ahead of them.

00:11:20.866 --> 00:11:24.964
They contain reducing agents — which ones exactly 
will depend on the developer —

00:11:24.964 --> 00:11:29.331
which continue the process of the silver halides
reducing to metallic silver,

00:11:29.331 --> 00:11:31.470
but they need to be selective.

00:11:31.470 --> 00:11:37.561
Ideally, we only want the developer to reduce
the halide crystals that already have that silver seed in them

00:11:37.561 --> 00:11:40.251
from the exposure to light in the camera.

00:11:40.251 --> 00:11:44.310
Through various chemical tinkering such as
adjusting the pH of the solutions,

00:11:44.310 --> 00:11:48.231
adding compounds which accelerate the reduction reaction
once in-progress

00:11:48.231 --> 00:11:54.336
but also inhibitors so that it doesn’t happen to crystals which don’t already have that seed of silver,

00:11:54.336 --> 00:11:56.914
we arrived at these solutions.

00:11:56.914 --> 00:12:02.756
Now, when you’re using many of these chemicals,
you need to look up the specific film stock you’re developing

00:12:02.756 --> 00:12:06.543
to get a development time and adjust for temperature.

00:12:06.543 --> 00:12:10.322
Just like most reactions more temperature equals more faster,

00:12:10.322 --> 00:12:12.341
and depending on the film’s properties

00:12:12.341 --> 00:12:18.086
(and also whether you want to pull- or push-process 
the film to a lower or higher equivalent speed)

00:12:18.086 --> 00:12:22.376
you’ll have a somewhat narrow time window for best results.

00:12:22.376 --> 00:12:27.436
Many films have a chart printed on the inside
of their box for common developers,

00:12:27.436 --> 00:12:29.692
but I don’t bother with any of this nonsense

00:12:29.692 --> 00:12:34.529
because I have been enlightened to the world of stand development.

00:12:34.529 --> 00:12:38.565
It turns out that so long as you’re OK with
the process taking much longer,

00:12:38.565 --> 00:12:40.147
as in an hour,

00:12:40.147 --> 00:12:44.354
you can develop pretty much any film without thinking about it.

00:12:44.354 --> 00:12:47.085
I enjoy not thinking about things on occasion,

00:12:47.085 --> 00:12:52.766
especially when it frees me from wondering whether I’m doing things the quote unquote “best way,”

00:12:52.766 --> 00:12:55.231
so this was right up my alley.

00:12:55.231 --> 00:13:01.684
This particular developer goes by many names
but traditionally it’s been known by its original name Rodinal.

00:13:01.684 --> 00:13:04.517
And it is a very old formulation.

00:13:04.517 --> 00:13:07.303
As in from 1891.

00:13:07.303 --> 00:13:10.272
Also, it was originally developed by Agfa.

00:13:10.272 --> 00:13:15.535
Now the “One Shot” on this bottle might
give you a hint about what makes it kinda special.

00:13:15.535 --> 00:13:20.399
Many other developers are meant to be reused
after developing a roll of film.

00:13:20.399 --> 00:13:25.271
They’re very concentrated and usually require
less than 10 minutes to develop film,

00:13:25.271 --> 00:13:30.639
so although the reduction reaction they cause does slightly
weaken them by way of oxidation,

00:13:30.639 --> 00:13:34.796
it takes quite a few rolls of film for that to be noticeable.

00:13:34.796 --> 00:13:37.831
These developers, though, are much more dilute.

00:13:38.311 --> 00:13:43.735
Well actually in the bottle it’s very concentrated
but you use a very high dilution ratio in water

00:13:43.735 --> 00:13:48.660
resulting in a pretty weak working
solution which is only good for one roll.

00:13:48.660 --> 00:13:54.762
With the advised 1 to 25 and 1 to 50 dilutions
the film development still happens pretty quickly,

00:13:54.762 --> 00:14:00.269
but if you go to a 1:100 dilution
something vaguely magical occurs.

00:14:00.269 --> 00:14:06.419
With a 1:100 dilution ratio, what the film is 
and to some extent how you shot it...

00:14:06.419 --> 00:14:08.279
doesn't really matter.

00:14:08.279 --> 00:14:10.091
It’ll just work.

00:14:10.091 --> 00:14:17.147
Now this is postulation on my part but I think
the reason this is possible is that at such a weak concentration,

00:14:17.147 --> 00:14:24.323
there’s only just enough developer in the solution
 to attain normal image density before it is all oxidized.

00:14:24.323 --> 00:14:28.314
Film processed this way in a sense can’t be overdeveloped,

00:14:28.314 --> 00:14:30.477
or at least it’s really hard to do that,

00:14:30.477 --> 00:14:35.427
and the long time you leave the film in the solution ensures it will completely reduce

00:14:35.427 --> 00:14:40.378
pretty much all the crystals that should be while leaving the rest alone.

00:14:40.378 --> 00:14:44.508
It’s pretty great, and will help compensate for underexposure, too,

00:14:44.508 --> 00:14:51.097
producing an end result that sort of allows you to push process individual frames within a roll.

00:14:51.097 --> 00:14:56.445
It’s not perfect, and I’m sure there are photographers out there that would advise against it for one reason or another,

00:14:56.445 --> 00:15:01.764
but in my experience it has simply always worked no matter what film stock I’ve thrown at it

00:15:01.764 --> 00:15:05.012
(though to be fair that’s only been maybe half-a-dozen).

00:15:05.012 --> 00:15:09.290
And as a bonus, Rodinal is a very shelf-stable formula.

00:15:09.290 --> 00:15:13.083
This bottle is pushing 10 years old and still works fine.

00:15:13.083 --> 00:15:17.870
And since you use so little of it with each go, it’s quite cheap, too.

00:15:17.870 --> 00:15:22.234
You can develop well over 100 rolls with a
half-liter bottle like this.

00:15:22.234 --> 00:15:23.637
So let’s get going.

00:15:23.637 --> 00:15:26.140
Welcome to this gross utility sink.

00:15:26.140 --> 00:15:29.759
Generally you want to give your film a rinse
before you start developing it.

00:15:29.759 --> 00:15:34.579
Letting the gelatin soak in some water first
helps to ensure development happens uniformly.

00:15:34.579 --> 00:15:38.393
Also if you noticed the bright blue color of this film,

00:15:38.393 --> 00:15:40.550
well rinsing it takes that off.

00:15:40.550 --> 00:15:45.860
I don’t know if that is an anti-halation
layer which some films have or what exactly it is,

00:15:45.860 --> 00:15:48.505
but water washes it away pretty quickly.

00:15:48.505 --> 00:15:56.301
Now, looking at the bottom of the tank, I need to make 590 CCs of solution to completely submerge this reel.

00:15:56.301 --> 00:16:01.173
Using a 1:100 dilution that would suggest
I need about 6 CCs of Rodinal,

00:16:01.173 --> 00:16:03.110
which is what I’ll go ahead and use.

00:16:03.110 --> 00:16:05.210
There is some nuance here, though.

00:16:05.210 --> 00:16:11.294
A roll of 120 film is a lot wider than 35mm film, 
but it’s also much shorter.

00:16:11.294 --> 00:16:18.629
A 36 exposure roll of 35mm film has just about
the same total area as a roll of 120 film,

00:16:18.629 --> 00:16:24.620
so using 6 CCs of Rodinal in the solution could
actually be more developer than we need.

00:16:24.620 --> 00:16:28.427
We need more solution in the tank because
the reel is much taller,

00:16:28.427 --> 00:16:32.930
but we might not actually need any more chemical developer in the solution.

00:16:32.930 --> 00:16:36.611
I have developed a roll of 120 film using
only 4 CCs Rodinal,

00:16:36.611 --> 00:16:41.920
but the negatives were kind of thin - meaning none of the film got very dark.

00:16:41.920 --> 00:16:44.329
Because of that, and because this film is pretty old,

00:16:44.329 --> 00:16:48.759
I’m going to stick with 1:100 dilution and use 6 CCs.

00:16:48.759 --> 00:16:51.825
Plus, with stand development you don’t agitate much

00:16:51.825 --> 00:16:56.103
so developer not near the film is probably gonna stay not near the film.

00:16:56.610 --> 00:16:59.753
I mean this is photography, it’s more art than science.

00:17:00.447 --> 00:17:02.868
Ooh that’s gonna cause me some grief...

00:17:02.868 --> 00:17:05.620
So, here’s 6 CCs of the developer.

00:17:05.620 --> 00:17:07.890
That’s really all we need.

00:17:07.890 --> 00:17:13.733
And now I’ll fill this up with water to
at least 590ml and we have our working solution.

00:17:13.733 --> 00:17:16.742
With the film already rinsed, we can simply pour this in,

00:17:16.742 --> 00:17:21.098
then use the little agitating stick thing that comes with tank to spin the
reel back and forth

00:17:21.098 --> 00:17:24.143
and make sure everything gets sloshed together nicely

00:17:24.143 --> 00:17:29.368
(you can also put on this lid and invert the tank 
but that tends to leak a little bit so I prefer this method,

00:17:29.368 --> 00:17:33.164
also I’m missing that retaining ring so I’d rather not invert it so much),

00:17:33.164 --> 00:17:38.943
and last but not least you want to smack the tank against the bottom of the sink or some other hard surface

00:17:38.943 --> 00:17:43.820
to dislodge any bubbles that might have formed on the film during agitation.

00:17:43.820 --> 00:17:47.413
Now, just leave it alone for a half hour.

00:17:47.413 --> 00:17:50.744
Let it stand, hence stand development.

00:17:51.651 --> 00:17:56.075
This isn’t very exciting, but the developer’s
slowly seeping its way into the emulsion

00:17:56.075 --> 00:17:59.973
and latching onto the crystals which have those tiny silver molecules

00:17:59.973 --> 00:18:03.873
and finishing the job of reduction into metallic silver.

00:18:03.873 --> 00:18:10.317
After a half hour is up, agitate it again
to ensure whatever’s left of working developer can get where it needs to go,

00:18:10.317 --> 00:18:12.154
and wait another half-hour.

00:18:12.154 --> 00:18:16.644
Pedants wish for me to inform you that because
I’ve done that middle agitation,

00:18:16.644 --> 00:18:19.668
this is in fact semi-stand development.

00:18:20.362 --> 00:18:23.168
While we’re waiting, let’s talk about fixer.

00:18:23.168 --> 00:18:25.748
You might have noticed that prior to development,

00:18:25.748 --> 00:18:27.998
film appears opaque.

00:18:27.998 --> 00:18:33.525
That’s what all the crystals of undeveloped
silver halides look like suspended in the gelatin.

00:18:33.525 --> 00:18:38.625
Remember how I said in the previous video
that fixing got rid of undeveloped halides?

00:18:38.625 --> 00:18:43.065
Well, watch what happens when I put this bit of film into some fixer.

00:18:43.065 --> 00:18:45.528
Before long it becomes transparent.

00:18:45.528 --> 00:18:49.289
With none of the halide crystals converted
to silver by the developer,

00:18:49.289 --> 00:18:54.750
the fixer dissolves them all, leaving nothing but the gelatin
base and the plastic backing.

00:18:54.750 --> 00:18:57.996
However, the fixer cannot dissolve pure silver,

00:18:57.996 --> 00:19:04.380
so whatever grains were successfully reduced in the development process 
will stay behind and form the image.

00:19:04.380 --> 00:19:07.934
Through the magic of video editing, our time is up.

00:19:07.934 --> 00:19:12.185
Since we used a one-shot developer, 
we’ll just pour it down the drain.

00:19:12.185 --> 00:19:17.561
If we were using something like D-76, we would
pour it back into the bottle for later use.

00:19:17.561 --> 00:19:19.873
Now here’s an optional step.

00:19:19.873 --> 00:19:21.457
Stop bath.

00:19:21.457 --> 00:19:25.790
The reducing agents in the developer require
a high pH to work effectively.

00:19:25.790 --> 00:19:29.926
If you use a stop bath, which is usually just dilute acetic acid,

00:19:29.926 --> 00:19:34.827
the pH is lowered to the point of stopping any further development action.

00:19:34.827 --> 00:19:39.045
Now, at the risk of making an opinion known online,

00:19:39.045 --> 00:19:42.582
I don’t think it’s necessary for pretty much any film development.

00:19:42.582 --> 00:19:45.849
I just rinse the film with water and move on to fixer.

00:19:45.849 --> 00:19:50.994
If you were using a film and developer with a really sensitive development time,

00:19:50.994 --> 00:19:52.913
maybe you’d want to use stop bath,

00:19:52.913 --> 00:19:57.435
but especially because I use stand development I just don’t see the point.

00:19:57.435 --> 00:20:00.702
Also a lot of fixers are acidic so again…

00:20:00.702 --> 00:20:02.170
yeah.

00:20:02.170 --> 00:20:05.646
Anyway, after rinsing it a few times I’ll pour in the fixer.

00:20:05.646 --> 00:20:13.504
This bottle is nowhere near fresh so I’m going to allow the film 
12 minutes of fixing time with some agitation every minute.

00:20:13.504 --> 00:20:16.057
That’s probably way more time than I actually need.

00:20:16.057 --> 00:20:19.103
How long you should fix depends on your fixer.

00:20:19.103 --> 00:20:22.109
I’ll make up fresh solution… at some point.

00:20:22.109 --> 00:20:27.363
But anyway, just like we saw earlier the fixer’s making the film all clear-like

00:20:27.363 --> 00:20:30.021
except for where the developer made it all silvery-like

00:20:30.021 --> 00:20:31.824
and after we’re done with this step,

00:20:31.824 --> 00:20:35.279
we can pour the fixer back into the bottle and start rinsing.

00:20:35.279 --> 00:20:38.134
At this point the film has been developed.

00:20:38.134 --> 00:20:39.649
At least I hope so.

00:20:39.649 --> 00:20:45.792
You want to rinse the film for a good long
while to make sure you get as many residual chemicals off of it as possible

00:20:45.792 --> 00:20:48.577
(well, chemicals other than water).

00:20:48.577 --> 00:20:54.152
There are products like this which you can
hook up to a faucet to make this more effective and less wasteful - 

00:20:54.152 --> 00:20:57.164
Fun fact, this thing is a greedy cup siphon!

00:20:57.164 --> 00:21:00.325
But since this film isn’t super duper important to me,

00:21:00.325 --> 00:21:02.787
I’m just gonna let the water trickle over it for a while,

00:21:02.787 --> 00:21:07.314
do some swirls, some of these maneuvers, and then there’s one last step.

00:21:07.314 --> 00:21:08.649
Photo-Flo.

00:21:08.649 --> 00:21:14.522
More generically known as wetting agent, 
this stuff is basically rinse aid for your dishwasher.

00:21:14.522 --> 00:21:18.363
In fact I’ve often wondered if there would
be any harm in just using that.

00:21:18.363 --> 00:21:22.076
Anyway, it’s a mild surfactant which lowers
the surface tension of water

00:21:22.076 --> 00:21:24.923
and makes it sheet off of the film in a…

00:21:24.923 --> 00:21:27.465
film so that you don’t get water spots.

00:21:27.465 --> 00:21:33.068
Technically this is optional but if you have
hard water… you should definitely not skip this.

00:21:33.068 --> 00:21:37.225
After you’re done rinsing, you just add a few mls of the stuff to clean water,

00:21:37.225 --> 00:21:38.897
swirl the film around in it,

00:21:38.897 --> 00:21:43.086
then struggle to get it out of the tank 
because the Photo-Flo made it all slippery,

00:21:43.086 --> 00:21:46.848
and finally you can open up the reel and retrieve your developed film.

00:21:48.000 --> 00:21:50.284
This does not look right.

00:21:50.951 --> 00:21:53.013
Ohhhh…. no. 

00:21:53.267 --> 00:21:56.544
Remember how I was saying that this film is awful?

00:21:56.544 --> 00:21:59.095
Well, yeah.

00:21:59.095 --> 00:22:01.022
Shouldn't have used it.

00:22:01.022 --> 00:22:04.078
Now this could simply be because of its age.

00:22:04.078 --> 00:22:10.987
It expired in 2013 and because the film’s emulsion was in contact with the backing paper for a decade

00:22:10.987 --> 00:22:17.800
chemicals in the paper — particularly in the ink — may have leached into it
and made all this nonsense happen.

00:22:17.800 --> 00:22:23.208
That makes the most sense to me because I
can’t figure out how else the numbers would have gotten on there.

00:22:23.208 --> 00:22:25.871
This definitely doesn’t look like a light leakage problem —

00:22:25.871 --> 00:22:31.435
and they’re misaligned from where they actually are behind
the film when the image is taken.

00:22:31.435 --> 00:22:35.736
The 1 should be in the bottom-left corner
of the first image but it’s not,

00:22:35.736 --> 00:22:40.846
suggesting this came from the where the printed numbers
touch the film when it's rolled up.

00:22:40.846 --> 00:22:44.381
Luckily for you I decided to go back out into
the wilderness

00:22:44.381 --> 00:22:48.172
and recreate the shot with a roll of this less-terrible film.

00:22:48.172 --> 00:22:50.363
And then I did the developing rigmarole again.

00:22:50.363 --> 00:22:52.149
And here’s that film.

00:22:52.149 --> 00:22:54.734
And I call this is a no-effort video....

00:22:54.734 --> 00:22:59.451
Anyway, after hanging it up and allowing it
to dry (I usually wait at least a couple of hours)

00:22:59.451 --> 00:23:02.401
we can handle it, though you still want to be careful.

00:23:02.401 --> 00:23:07.325
If you’re not wearing some sort of gloves
you definitely want to not touch any part with an image on it,

00:23:07.325 --> 00:23:09.655
and are best to handle it by the edges.

00:23:09.655 --> 00:23:16.993
This is of course a negative image, but there’s
something about film that’s different from the earlier plate-based methods.

00:23:16.993 --> 00:23:22.966
With film, light is transmitted through it and the silver crystals block that transmission.

00:23:22.966 --> 00:23:26.838
We don’t have to come up with any tricks
for making this appear as a positive

00:23:26.838 --> 00:23:29.905
because this is not the final image.

00:23:29.905 --> 00:23:31.917
Oh but, because it’s now,

00:23:31.917 --> 00:23:33.638
I can just do this.

00:23:33.638 --> 00:23:37.604
However, there is a trick you can do to make this appear as a positive.

00:23:37.604 --> 00:23:42.102
And it’s not too far off from how the Ambrotype
makes an apparent positive.

00:23:42.102 --> 00:23:47.270
Although the silver in transparent films is
meant to block light traveling through it,

00:23:47.270 --> 00:23:48.904
it’s still silver.

00:23:48.904 --> 00:23:52.559
With the emulsion side up and the film against a dark background,

00:23:52.559 --> 00:24:01.517
if you can catch light in just the right way, the silver’s shine
will come through and make the exposed parts appear brighter than the background.

00:24:01.517 --> 00:24:06.452
This doesn’t work with all film stocks, or at least it’s much easier to do in some than others,

00:24:06.452 --> 00:24:12.080
and although it’s nifty it’s definitely not the optimal way to view the image.

00:24:12.080 --> 00:24:16.280
In the next video, we’ll talk about photographic printing.

00:24:16.280 --> 00:24:20.650
You know those scenes in movies where someone's in a room with a dim red light

00:24:20.650 --> 00:24:23.937
and they make photos appear in trays of liquid?

00:24:24.257 --> 00:24:25.049
Yeah.

00:24:25.049 --> 00:24:26.314
That.

00:24:26.314 --> 00:24:31.763
We’ll also talk a little more deeply about
35mm film and some of the factors and innovations

00:24:31.763 --> 00:24:37.478
that made it become the dominant film format
from the latter 20th century into the digital age.

00:24:37.478 --> 00:24:39.200
And also now.

00:24:39.200 --> 00:24:44.466
120 is still alive, but 35mm is still the
most mainstream film format.

00:24:44.466 --> 00:24:49.583
Despite all of Kodak’s attempts to come
up with something new every decade or so.

00:24:49.583 --> 00:24:54.907
People rightfully think that Kodak let the
digital age sneak up on them... because they did

00:24:54.907 --> 00:24:58.040
but hey, they were trend chasers back in their day.

00:24:58.040 --> 00:25:02.208
I mean, just look at 1982’s Disc film!

00:25:02.208 --> 00:25:07.996
I wonder what other thing from 1982 could
possibly have inspired that logo…

00:25:08.770 --> 00:25:11.474
♫ reductively smooth jazz ♫

00:25:12.595 --> 00:25:18.240
By the way, apparently I need to clarify that
120 film... the format.

00:25:18.240 --> 00:25:19.445
Haaghh!

00:25:21.339 --> 00:25:23.540
120 film. The format!

00:25:24.000 --> 00:25:26.020
Then, I abruptly stopped.

00:25:26.020 --> 00:25:27.240
And here we are!

00:25:27.740 --> 00:25:28.240
Dangit.

00:25:28.240 --> 00:25:32.440
Yeah, that’s kind of a 
[weird, disappointed mouth noises]

00:25:32.440 --> 00:25:37.596
Whether or not you can see an individual grain...
in the end is more or less down to…

00:25:39.597 --> 00:25:41.476
That hesitation shouldn’t have been there.

00:25:41.476 --> 00:25:44.503
...is more or less — did I skip a word?

00:25:44.797 --> 00:25:45.791
Because…

00:25:46.644 --> 00:25:48.352
it feels like I did.

00:25:48.352 --> 00:25:51.088
But, because of how grain… no!

00:25:51.088 --> 00:25:53.883
That word is missing from the script.

00:25:53.883 --> 00:25:56.510
Because of how *the* grain. 
Gotta remember to put that in.

00:25:56.510 --> 00:26:00.830
Is more or less down to whether or not
IT got HIT with light in the exposure.

00:26:00.830 --> 00:26:01.843
That.

00:26:01.843 --> 00:26:02.963
Why?

00:26:03.310 --> 00:26:05.763
Whether or not you can see an ind…

00:26:05.763 --> 00:26:06.263
GARH

00:26:06.263 --> 00:26:08.859
But, because of how grain interact…

00:26:08.859 --> 00:26:10.782
(inhales through teeth)

00:26:12.543 --> 00:26:15.781
This line has taken up like 15 minutes.

00:26:15.781 --> 00:26:21.201
Just do this twisting motion a bunch of times
and the reel pushes the film onto itself.

00:26:21.201 --> 00:26:25.018
With the film following these ridges in a
spiral to the center.

00:26:25.338 --> 00:26:28.467
[loud grating noises] 
Could you even hear me over this?

00:26:28.467 --> 00:26:31.296
That’s a great question. We’ll find out in the edit!

00:26:31.296 --> 00:26:34.146
It takes quite a few rolls of film for that to be noticeable.

00:26:34.146 --> 00:26:39.422
There’s a … OK I want to go back in the edit and see if there was a weird noise that I made.

00:26:39.422 --> 00:26:41.252
I need to remember to do that.

00:26:43.013 --> 00:26:44.935
If this isn’t in the bloopers I forgot.

00:26:46.802 --> 00:26:50.428
The first time I did the photoshoot of the tea kettle (which was done in a park)

00:26:50.428 --> 00:26:53.463
someone was walking their dog, saw me, and said hello.

00:26:53.463 --> 00:26:57.605
Explaining that I had hauled a camping stove, tea kettle, tripod, video camera, and an antique camera all to make a terrible joke on the internet

00:26:57.605 --> 00:26:59.551
was a little weird.

00:26:59.551 --> 00:27:01.987
Luckily with the re-shoot nobody saw me.

