Okay. After reading all the comments about pushing C-41 I decided to take
a stab at it.
I exposed a roll of Solaris FG 400 yesterday in subdued sunlight using the
same
aperture (f 8) and exposures of 1/125, 1/250 and 1/500 of four different
scenes.
The correct (normal) exposure, according to the P30 would have been 1/125 at
f 8.
I was tempted to go one stop further, but thought I'd better not for the
trial run.
Then I processed the film with an increase of 20% over recommended time with
everything else controlled and normal. With few exceptions (very light
subject)
the frames are almost all usable. In the case of light subjects the optimal
frames
are those that rate the film at 1600 ASA. In some cases it's hard to choose
the
best negative.
Scanning was done with no compensation of any kind besides focussing. The
preliminary verdict is that Solaris FG 400 can easily be pushed to 1600 ASA.
I'll analyse and post the results in a scientific way and put samples on my
web
site shortly. The mask is denser, but presents no problem when scanning. A
histogram seems to indicate that it is about twice as dense as normal. But I
have no good way of measuring this. I think about it a bit.
I have no idea what would happen if these negatives were put in an enlarger.
For those interested in the pictures of the close-up 'flash
reflector-contraption'
please look. I'm going to remove them in a few hours to make room for the
push
samples.
Don
Dr E D F Williams
Author's Web Site and Photo Gallery
Updated: March 30, 2002
- Original Message -
From: tom [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, July 21, 2002 2:29 PM
Subject: RE: Pushing C-41
You might take into consideration that some films are supposedly more
pushable than others. I believe Fujipress, T400CN and possibly the
Supras are set up so the orange mask isn't as sensitive to development
times as in other films.
Haven't tried it myself, and the mask is only half the problem.
tv
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Don
Williams Finland
Sent: Sunday, July 21, 2002 3:21 AM
To: [EMAIL PROTECTED]
Subject: Re: Pushing C-41
I've found quite a bit more about pushing C-41 - after more
intelligent
searching on the WWW. It would appear that the recommended
increase per stop
ranges from 15% to 30% of normal time in the developer. I
don't use an
enlarger so any filtration would be done in PhotoShop. Of
course scanning
involves other potential difficulties, but I won't touch on
those for the
moment. I'll start my experiments when the sun comes out.
D
Dr E D F Williams
Author's Web Site and Photo Gallery
Updated: March 30, 2002
- Original Message -
From: Bob Rapp [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, July 20, 2002 3:48 PM
Subject: Re: Pushing C-41
- Original Message -
From: William Robb [EMAIL PROTECTED]
Push processing film increases contrast, and BD+f, but doesn't
provide any useful speed increase.
William Robb
-
And.would add a colour cast than no amount of filtration could
eliminate.
Bob
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