So I was shooting a mountain scene in the High Uintas in north eastern Utah with rocks and rock slabs in the foreground with forest and peaks in the background. Was facing directly east and the lighting was post sunset as I needed a balanced exposure with the whole scene evenly illuminated.
Once the last rays of sun were off the peaks I got ready to shoot. Lens was a Grandagon 90 6.8 with a Heliopan KR3 MC filter. Exposures were F32 at 5s, 15s, 33s, and 66s for the four sheets I exposed as the light got darker with Velvia 50. When I got the film back I noticed a color shift that got worse as the exposures got longer. The 4s shot looks natural, with the 15S shot getting some color shift and the 66s shot the worse of them all.
Shift is magenta, violet, slight red, and some purple. Looks interesting and kind of other worldly in a way but I will print the first exposure. Is this color shift from the film or from what is all the blue light at this elevation(about 10,000 feet) on a clear day after the sun set, hence the KR3 filter or a combination from both.
I still have some Provia 100F, Velvia 100, and Astia 100F so I will try those in these conditions. If one of these does good I guess I am stuck using Velvia 50 <5 sec and one of the other films >5 sec. Thoughts, Thanks
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