At 23:40 1/13/01, Larry wrote:
It has its uses. It works better than the E-6 comparables in dusk low light.
The grain is not objectionable in all circumstances. Here's a sample pic.
http://albums.photopoint.com/j/View?u=1430513&a=10718179&p=37954653&Sequence=0&res=high
The diffused lighting is very flattering and color rendition nice,
especially skin tones. It's what achieves the photographer's vision for
the image that counts. Similarly, some like Tri-X for its grain structure
and others don't because it shows readily in larger prints, in spite of its
softness. One of the things I like about Kodachrome is how it handles
lower contrast scenes.
K64 is 2/3 stop under ISO 100. I have occasionally run into low light
trouble outdoors requiring aperture/shutter combinations outside what's
feasible for the subject material. I wish there was a 125 speed between
the 64 and 200, but that's not likely to happen.
RMS granularity for the three speeds:
25: 11
64: 12
200: 19
Not well known about the three Kodachrome speeds is their differing
reciprocity failure characteristics. K25 and K200 have better reciprocity
failure with 1/2 stop compensation starting at 1 second and exposures
longer than 10 seconds are not recommended. K64 compensation starts at
1/10th second (1/3 stop) and Kodak doesn't recommend exposures exposures
longer than 1 second for it. See the data sheets for details on color
correction that might also be required within the exposure reciprocity
failure region. (For some films the color layers suffer reciprocity
failure at different points and color correction is recommended as well as
exposure compensation.)
-- John
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