Jack_Flesher
June 6th, 2007, 11:46 AM
I was up in Yosemite a few weekends ago playing around with my 8x10. Nothing really spectacular as the weather was clear and there was no atmospheric activity, but here are a few to share for fun. Both are shot on Fuji 160 Pro color negative film. These are straight scans from my Epson 4990 flatbed. I scanned them at 2400 LPI and 16-bits per channel color depth, so this generates a 2.38 Gig image file(!) Anyway, they would print at native size using 240 PPI to 80 x 100 inches, or roughly 6-1/2 x 8-1/2 feet in size. Obviously I downsized them significantly to post here ;)
First one is of the early morning frost in Tuolumne meadows, shot with a 300mm lens. Exposure was 1/4 sec at f32 -- I metered the frosty grass and placed it in zone VI-1/2. I used front rise to frame the image and front forward tilt to extend the plane of focus from grass at the bottom to trees on the far horizon. I then added some very slight swing to keep the angled log all sharp. The rear standard was left dead square to alleviate keystoning in the trees. (The front tilt of course means the close tree branches in the upper left will be totally out of focus.):
http://jack.cameraphile.org/albums/album08/Tuolumne_Meadows_Frost_900.jpg
Next shot is of an old Catholic church in Chinese Camp. I took this with a pinhole lens, approximately 150mm at f256. Exposure was 6 seconds which was a total guess, using the sunny-16 rule and adding a bit for reciprocity, all in an attempt to place the bright white of the church in Zone VII -- and the negative has excellent density so I was close, but 2 or 3 seconds probably would have been better. FWIW, long exposures (over 2 seconds) on color negative emulsions usually tend to saturate some colors relative to others. I did not do anything to adjust for that effect and thus the kind of retro, art-deco sky. I did use front rise, another guess at framing since you cannot see anything through an f256 pinhole lens, but again got lucky. Lastly, since it is a pinhole lens, tilt movements are useless:
http://jack.cameraphile.org/albums/album08/Pinhole_Church_sm.jpg
Cheers,
First one is of the early morning frost in Tuolumne meadows, shot with a 300mm lens. Exposure was 1/4 sec at f32 -- I metered the frosty grass and placed it in zone VI-1/2. I used front rise to frame the image and front forward tilt to extend the plane of focus from grass at the bottom to trees on the far horizon. I then added some very slight swing to keep the angled log all sharp. The rear standard was left dead square to alleviate keystoning in the trees. (The front tilt of course means the close tree branches in the upper left will be totally out of focus.):
http://jack.cameraphile.org/albums/album08/Tuolumne_Meadows_Frost_900.jpg
Next shot is of an old Catholic church in Chinese Camp. I took this with a pinhole lens, approximately 150mm at f256. Exposure was 6 seconds which was a total guess, using the sunny-16 rule and adding a bit for reciprocity, all in an attempt to place the bright white of the church in Zone VII -- and the negative has excellent density so I was close, but 2 or 3 seconds probably would have been better. FWIW, long exposures (over 2 seconds) on color negative emulsions usually tend to saturate some colors relative to others. I did not do anything to adjust for that effect and thus the kind of retro, art-deco sky. I did use front rise, another guess at framing since you cannot see anything through an f256 pinhole lens, but again got lucky. Lastly, since it is a pinhole lens, tilt movements are useless:
http://jack.cameraphile.org/albums/album08/Pinhole_Church_sm.jpg
Cheers,