[Frameworks] The Hand-Processing Chemistry Scheme.

[Colin Brant]

Hey Ben,


My two cents:


I usually use Recipes for Disaster (p. 53-55) as a basic guide for
processing times and procedure. Unless you have access to a G3 processing
tank (or equivalent) I find that I can do 60ft at a time in 5gal
buckets--if i am careful. Unless you are pushing the film in the first
developer, 2 gallons of D19 should get you through 400+ feet of film. So
for 3,000ft you'll need around 15gal of D19. Since it sounds like you'll be
in a newly setup darkroom and you can use a safe light for the Hi-Con
footage, I might suggest starting with that to get a good system down.


The bleach for reversal (R9 bleach) is not sold premixed anymore to my
knowledge, so you'll have to get some sulfuric acid and potassium
dichromate (see Recipes for Disaster or online search recipe and safety…).
This stuff will go a long way though; it expires about half as fast as D19
in my experience. I would say about 4-5 gallons for 1500ft of reversal, but
its not recommended to keep/store for very long (---it's most dangerous in
its evaporated state as airborne potassium dichromate dust = cancer:( so
when i'm done with a processing session i dump it.


Fix also last longer; I would get 4-5 gallons. Unless you are going to tint
the film, make sure it is a hardening fix solution.


Photographer's Formulary is good for premixed chemicals, also BnH has D19.
For ordering individual chemicals on the east coast, Artcraft Chemicals has
good prices, and product, but a weird website; they are in Albany and Mike
Jacobson is the person there that can answer any questions you have. I buy
all raw chems there to mix D19/D67, bleach, etc.


Hoping you are well and that this may have been helpful,

Colin


-- 

Colin Brant

Video and Animation Technician

Bennington College




On Wed, Jul 23, 2014 at 8:58 AM, lindsay mcintyre <email.linds at gmail.com>
wrote:

> I'll be shooting some Orwo 35mm UN54 as reversal and am currently
> looking for the Kodak/Ilford equivalents to the chemistry required in
> "Instruction 4185".  I'm hoping I don't have to mix it all from
> scratch. I assume any strong developer like D-19 would work for the
> 2nd developer but does anyone know from experience what the best 1st
> and 2nd developers are for this? Any other special considerations for
> UN54 as reversal?
>
> Thanks
>
> Lindsay
>
> On Wed, Jul 23, 2014 at 8:05 AM, Peter Mudie <peter.mudie at uwa.edu.au>
> wrote:
> > Please don’t put chemistry inside a Bolex – even the clockwind ones
> aren’t
> > that robust.
> > Peter
> > (Perth)
> >
> > From: Matilda Thomas <matilda.lily.thomas at gmail.com>
> > Reply-To: Experimental Film Discussion List <
> frameworks at jonasmekasfilms.com>
> > Date: Wednesday, 23 July 2014 10:00 pm
> > To: John Woods <jawoods01 at yahoo.ca>, Experimental Film Discussion List
> > <frameworks at jonasmekasfilms.com>
> > Subject: Re: [Frameworks] The Hand-Processing Chemistry Scheme.
> >
> > Also was wondering what the avail abilities of the bolex were in the
> coming
> > weeks? Thanks again matilda
> >
> > Sent from my iPhone
> >
> > On 23 Jul 2014, at 05:35, John Woods <jawoods01 at yahoo.ca> wrote:
> >
> > Generally I've always found 400ft of 16mm per 2 litres of developer is a
> > good ballpark number that hasn't let me down.
> >
> >
> > On Monday, July 21, 2014 8:20:59 PM, ben russell <br at dimeshow.com>
> wrote:
> >
> >
> > Frameworkers,
> >
> > Hello hello from New Hampshire!  I'm putting together a short-term
> darkroom
> > set-up and wanted to make use of your hive mind to double-check my
> somewhat
> > creaky hand-processing techniques, with particular regard to B/W reversal
> > and negative chemistry.
> >
> > I'm planning (along with a few other humans) to process around 3,000'
> > (1,500' of which would be reversal) of Hi-Con and Orwo UN54 and need some
> > chemistry recommendations.  Could you recommend a mix of materials for
> this
> > quantity?  I'm talking D-19, Rapid Fixer, Hypo, Wetting Agent, Bleach...
> >
> > It seems like the main options are Photographer's Formulary, which is
> fine
> > by me, but I'm unclear as to how much chemistry I need for what will
> > effectively be 30 rolls. Any thoughts?
> >
> > Thanks!
> >
> > BR
> >
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