It also has an rms diffuse granularity figure higher than Fuji's Provia
100F (lower granularity is usually considered "better"), but if you
compare their resolving power and MTF curves in lp/mm it explains why many
claim Velvia is "sharper" than Provia 100F; the film's contrast
characteristics also influence apparent sharpness (or acuity).
-- John
That's of interest. Sometime in the past month I followed a useful link to
site where A/B's were conducted using Velvia and Provia 100F. I've no
interest at all in Velvia but I like what I've seen of Provia and thought
of switching over to some limited work in reversals for just-after-sunset
shoots around town.
Anyway, the short version is that after studying these A/B's it was fairly
demonstrated (to my mind and eye, at least) that Provia 100F enjoys the
higher resolving power, especially in shadows. I think Velvia tends to look
like it gives better resolution that is actually the case due to the high
contrast achieved thanks to super-saturation.
Frankly, I think Velvia is something of a mediocre emulsion. The best
results from this film I've seen have been when the photographer
(apparently) tunes the saturation _down_ in software. Then this film begins
to show me something. I can do without the all-too-typical canyon and
lyrical-forest shots, though.
If I stumble across that link to the A/B tests again I'll post it here.
Tris
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