on 2/2/03 6:17 AM, Wayne Culberson at waynecul@xxxxxxxxxxxxxxx wrote:
> Anyways, sorry to all for dragging out this thread, but I do appreciate the
> suggestions and help. I think some of my "problem" has been the Kodachrome
> 64, but also I've been thinking this morning that maybe some of the problem
> might have been the Vivitar Zoom not rendering colors right in those
> conditions. I remember testing it when I first bought it, against Zuiko
> 50/1.8, but that was here in St John, NB, which is at about sea level, and
> of very colorful subjects, and using E6 film. I couldn't see significant
> differences in color then, but may not have been looking close enough. And
> again, not using a lens hood I'm sure didn't help.
> Thanks,
> Wayne
>
Wayne -- no doubt some of the problem might be coming from the film choice,
but most all films are very sensitive to UV. There is much more UV light at
high altitudes, so even though your eye/brain does a 'software' auto-white
balance adjustment and filters out the blue cast, the film can't do that.
I think a UV filter is more effective at lower altitudes, but is simply
overwhelmed by the much stronger UV at high altitudes. I suspect that K64
will give you good colors if 'helped' along with a warming filter e.g. 81A
or 81C. Some companies make 'warm polarizers'... those might be even more
effective as they would also reduce specular glare from rocks, foliage, etc.
resulting in more saturated colors.
--
Jim Brokaw
OM-'s of all sorts, and no OM-oney...
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