That could be a (flash) filter used in some pictures, or whatever similar.
I think it's very unlikely (read almost impossible) to have even casts
restricted to specific frames without affecting partially to others or
varying inside the affected frame. Also is very unlikely to have an even
fade of a dye the way you describe.
If you're judging from scans made automagically there ir might be something
fooling the auto white balance.
Imho the only way to know is measuring the negative, the orange mask and
something neutral in it. I think that for the extent of your needs you can
do it with vuescan.
Also I'm guilty of shooting an event with a yellow filter and color film. I
checked that prior shooting but you hardly can tell a light color in the
subdued light of a Romanic church so I thought it was the UV. The thing
ended well after some digital work, so everyone's happy but me. Lesson
learned .
My 2c
El lun., 25 oct. 2021 5:20, MARK SAMPSON <dmarc-noreply@xxxxxxxxxxxxx>
escribió:
Trust me, C-41 negatives can fade. But I’ve not seen a yellow cast in any
of mine, a few of which are 40+ years old.
The OP’s problem might be due to the way the minilab processed them
originally. Poor QC might take decades to show up; perhaps Bob Shanebrook
will share some knowledge.
Mark S
Sent from my iPhone
On Oct 24, 2021, at 8:07 PM, Ken Hart <kwhart1@xxxxxxxxxxxxxxx> wrote:the yellow discoloration is on the positive, that would be a cyan cast to
I think that c-41 is not old enough to have an aging/fading issue. If
the negative.
look at the area between the frames or the edge. The area next to the image
Richard has hit upon the key: find two yellowed frames side-by-side, and
will tell the tale.
loaded, and shot some frames with a yellow skylight filter?
I wonder if it's possible that the photographer thought he had B&W film
just the image area? I am looking for clues. Can you tell if its on the
Ken Hart
kwhart1@xxxxxxxxxxxxxxx
On 10/24/21 8:59 PM, `Richard Knoppow wrote:
Is the yellow all over the negative, I mean up to the edges rather than
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.
on a yellow colouration on C-41 negatives. I "inherited" the negativesIs 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
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?
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