I have seen this problem from time to time on wedding photos where the
ushers are wearing grey morning suits. To the eye all are the same shade of
grey, but to the camera there were two distinct colours - I always surmised
that one was natural fibre and the other was synthetic. I havn't noticed it
since we went digital - perhaps today they all get the suits from the same
outfitters!
We have the problem on schools portraits , It commonly occured with wedding guys on those nasty light green merengue bridesmaids dress , Kodak and Fuji spent years of man hours trying to fix/hide/cure it . As I said in an earlier mail the nearest we got was with very early (test batch) fuji reala , it was on a thick base and the labs hated it 'cos it took a third longer to print (a big deal if you are printing around 20,000 7x5 prints a day ). So fuji went to a thinner base and the problem came back . Its a difficult one to pin down as its a bit random as in when and where it occurs . I (neivly) thought that It would not occur on digital as it was a 'film thing' . but it seems worse .
What I dont understand is that it occurs with a fairly standard portrait lighting , but if I go shoot the same subjects in a reportage style (ie shooting on the hoof , available light backed up with bounce flash it doesnt seem to occur anywhere near as badly .
The hardest thing is to explain it to a client , they inevitably thick its Bulls**t.
best
Janus
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