At 07:39 10/02/98 -0800, George Ling wrote:
>Thanks for sharing this wonderful information with us. If it is NOT too
>much trouble for you, I would like to have also the *recommended filter*
>information - to compensate for color shift.
>
No problem George,
FILM
< 1 sec 1 sec 10 sec 100 sec
Ektachrome 64 nil O5R +0.5 NR NR
Ektachrome 100 nil O5R +0.5 NR NR
Kodachrome 64 nil 10R + 1 NR NR
< 1 sec 1 sec 10 sec 60 sec
Kodachrome E100SW nil nil nil 075y +0.33
< 1sec 4 sec 16 sec 64 sec
Velvia nil 5M + 0.33 10M + 0.66 NR
< 16sec 34 sec 120 sec 480 sec
Provia nil + 0.5 2.5R + 1 NR
< 32 sec 64 sec 120 sec 480 sec
Astia nil + 0.33 + 0.5 NR
< 1 sec 1 sec 10 sec 60 sec
Agfa RSX50 nil nil 05B + 0.66 + 1
< 1 sec 1 sec 10 sec 100 sec
Agfa Scala nil + 0.5 + 1 + 2
< 1 sec 1 sec 10 sec 35 sec
Ilford FP4 plus nil nil + 1.66 +2.5
HTH
>My understanding about color negative films is that they have wider
>exposure latitude and any color shift can/will be compensated during
>printing any way. Thus, I don't think I have seen (or I don't recall
>seeing) such information for color negatives.
Oh.
>On the other hand, many astrophotograhers use color negative films a lot
>and for long exposures, and one of them have JUST *calibrated* a bunch
>of them in terms of blue/green/red sensitivity. Here is his URL address.
>Hope this can answer your question.
<snip>
Thanks George!
__
Ian <IMS>
OM Tyro - please point my lens in the right direction.
mailto:ims@xxxxxxxxxxxxx
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