According to Martin Baumgarten (and other sources you should be adding
developer time as you exhaust the chemicals:
http://lavender.fortunecity.com/lavender/569/spiralreel.html
~~~> BLACK & WHITE Film Processing Control <~~~
(1). The best way to maintain control of your processing for any
process type, is to keep track of how many films you have processed in
a given solution and either replenish the solutions so they maintain
full-strength and/or adjust your processing time. A Liter of chemistry
will process about 6 to 8 rolls of Super 8mm film. After each roll of
film if processing separately, add approximately 15 seconds to each
Developer time only. Or after processing two rolls of Super 8mm film,
add 30 seconds to the next film batch. These are approximations
intended to quide you to correct final film density.
He also recommends creating your own control strips so you can keep track of
the density. He describes that process on that link. I've never done that but
if you have a large amount of film to process its probably worth the effort.
________________________________
From: "nicky.ham...@talktalk.net" <nicky.ham...@talktalk.net>
To: frameworks@jonasmekasfilms.com
Sent: Wednesday, February 15, 2012 10:08:03 AM
Subject: Re: [Frameworks] E-6 Imperfections
I'm pretty sure "Sixty films" refers to 36 exposure 35mm slide films, not Super
8 films. One 35mm slide film is about 1.3meters long, which roughly equates to
five meters of Super 8, whereas a roll of Super 8 is 15 metres long. That means
a 5 litre kit would process about twenty rolls of Super 8 and a one litre kit
only about four. (Correct me if I've blundered with the sums!)
Nicky.
-----Original Message-----
From: Kevin Timmins <on-on...@hotmail.com>
To: FrameWorks <frameworks@jonasmekasfilms.com>
Sent: Wed, 15 Feb 2012 17:47
Subject: Re: [Frameworks] E-6 Imperfections
Oh right, thanks Nicky
On the box it says that the 5 liter kit can process 60 films. I did the simple
math and figured that 1ltr should process 12 films with good results.
Apparently not! Seems a little cunning to state it can do twice the amount the
chemicals are capable of!
Best
Kevin
________________________________
To: frameworks@jonasmekasfilms.com
Date: Wed, 15 Feb 2012 12:31:07 -0500
From: nicky.ham...@talktalk.net
Subject: Re: [Frameworks] E-6 Imperfections
I think you may be over-using the chemicals, assuming it's the Tetenal three
bath kit. If you do the calculations you can do up to six rolls safely, but
strictly five rolls, if I'm not mistaken, so the sixth is a bonus. After that
you're gambling with exhausted chemicals,
Nicky Hamlyn.
-----Original Message-----
From: Kevin Timmins <on-on...@hotmail.com>
To: FrameWorks <frameworks@jonasmekasfilms.com>
Sent: Tue, 14 Feb 2012 17:17
Subject: Re: [Frameworks] E-6 Imperfections
Hi Erin,
Indeed I am using a Lomo developing tank. I did checked the spacing of the film
on the reels whilst hanging it to dry and all the film looked perfectly
mounted. However I suppose it could have shifted and re-shifted in the tank
during the reversal process? I don't know if this will help but the brown bits
aren't as visible on the lighter (outdoor images) but are worse on the indoor
images. For example one roll of film (100D) was used indoors and it was
inevitably very dark anyway. The brown transparent layer seemed much more
prominent on these darker images and was much more noticeable.
Can that tell me anything?
Kevin
________________________________
Date: Tue, 14 Feb 2012 09:59:00 -0500
From: eri...@gmail.com
To: frameworks@jonasmekasfilms.com
Subject: Re: [Frameworks] E-6 Imperfections
Hi Kevin,
Are you using a lomo tank?
Your problem sounds like the same one I have had with both E6 and B&W reversal
in lomo tanks.
I think those brown bits are occurring anywhere that the film slips out of
alignment and touches an adjacent piece of film for too long.
Neither bit of film is then making proper contact with the processing
chemicals.
Further, this seems to be happening somewhere in the reversal stage.
In one case I actually had this layer going on for a while with bits of
negative and positive imagery appearing throughout it. I inferred that that the
film was making proper chemical contact at various stages of the process, but
not all. That was a particularly poorly loaded tank.
In the case I have described above, the brown stuff is opaque and seems almost
thicker than the rest of the film. On other film stocks it appears as different
colours.
Strange that you only had this problem on your 7th and 8th rolls, but less
strange if you processed them together. Maybe you are encountering something
totally different.
Hope this helps,
Erin
On Tue, Feb 14, 2012 at 7:52 AM, Kevin Timmins <on-on...@hotmail.com> wrote:
Hi all,
>
>
>I've been doing a lot of Super 8 developing for people over the last few
>weeks. The last two film I developed last night had an interesting
>imperfection and I wondered if anyone on frameworks could shed some light on
>what's happening.
>
>
>The chemicals were mixed on the 1st and as far as I'm aware the chemicals are
>viable for up to 2 weeks. I've actually developed film with chemicals 3 weeks
>old and got fantastic results. However I'm developing other peoples films so
>I'm not developing past today/tomorrow at the very latest. I've got 4 more
>films I need to develop tonight and tomorrow night.
>
>
>Last night I developed my 7th and 8th super 8 film in the tank (apparently you
>can do up to 12 with one liter), but anyway I wondered if this could
>contribute to the problem.
>
>
>So the problem... Ok now the films have come out great overall but in parts
>there seems to be this light browny kind of layer that fluidly move across the
>image, in parts it's centralized and in others it's on the edges. Like I say
>overall the images are clearly visible and sharp without much grain but there
>just seems to me this brown mask that intermittently comes and goes. It's
>present on both films I developed. Any ideas?
>
>
>Could light be getting in the tank somehow? If anyone has come along this
>effect in the past please let me know.
>
>
>ThanksKevin
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>
>
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