DEAR RICHARD,
Perhaps I am missing something obvious but do I recall correctly
that color C-41 negatives all have that yellowish/orange cast to make printing
easier, requiring less filtration? Kodak referred to it as "the mask". I only
used C-41 black and white film once (because I hated the results) so I don't
recall if it had the same overall cast.
CHEERS!
BOB
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of `Richard Knoppow
Sent: Sunday, October 24, 2021 8:59 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Yellow colouration in C-41 negatives
Is the yellow all over the negative, I mean up to the edges
rather than just the image area? I am looking for clues. Can you
tell if its on the emulsion side or the support side? The
question is whether its actually some sort of flare. Old
Kodachrome slides and prints often had a yellow color from the
lacquer on them. Two kinds of lacquer, one came off with a mild
alkaline solution like print developer, the other with a solvent
but I don't remember what. I think that is unlikely here because
it would be all over the film.
Is this color or stain uniform?
On 10/24/2021 1:01 PM, Richard Urmonas wrote:
While not strictly silver I was hoping someone could shed some
light on a yellow colouration on C-41 negatives. I "inherited"
the negatives from a family member so I do not know the history
of development and storage, but expect these were processed by
a local 1 hour lab and then stored in a drawer for a number of
years. From the contents I think these date from the 1990s.
The issue I am observing is a yellow colouration across the
whole frame, like a yellow filter was used. This seems to have
happened on random frames and can affect a single frame to 3 or
4 in a row but then have "good" frames. There is even a case
where 2 frames apparently taken a short while apart have one
with the yellow colouration and the other looking fine. Note
that the yellow colour is on the positive image from my
scanner. The colour shift can be seen on the negative. This
only affects some films, others which have been stored together
with the affected films show no issue. I would have suspected
some colour fading effects, but this does not explain the whole
frame being affected. Can anyone shed some light on what might
be going on?
Thank you,
Richard Urmonas
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