> From: james olson
> Subject: [OM] 100/2 vs. 100/2.8 (color cast differences.)
>
> I have both the 100/2 and the 100/2.8. I've owned the 100/2.8 for many
> years, and just purchased the 100/2. After receiving back my first few
> rolls of slide film using the 100/2, I've noticed that it seems much, much
> cooler in color cast than the 100/2.8.
>
> Has anyone else noticed a similar phenomenon when using the 100/2? The
> results are great, but maybe I'll have to find a slight warming filter.....
Hi James,
As explained in the January 1985 issue of Asahi Camera magazine
published in Japan, the color contribution index of the Zuiko 100/2
is 0/4/3 and that means this lens is very close to the ISO
recommended 'standard lens'. BTW 90/2 is very close to the ISO
standard too.
kazuya matsumoto
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