A simple google search brought this up, tables for both Velvia and Ektar
Dead Link Removed
Thanks for the pointer.
When I typed the search string into Google just now I got a quick auto-complete, as would be expected having already made several Google searches.
I probably should have been more accurate in my original post, and/or explained what I meant by the term "pinhole friendly".
I saw this particular Ektar 100 table and guess that it is probably sufficient for conventional photography. But I was looking for something where the time extends much farther for shots restricted to
f/235. This table looks sorta close to Superia up to around the longest exposure that it covers (64 seconds), but that's just where the "fun" begins with pinhole. Just to satisfy my curiosity, I guess I need to plot out the more complete Superia curve that I have against the shorter Ektar curve to see how they compare at the low end.
The end result is a camera-specific table I work up in MS Word, convert to an image, and then print out as a label I stick inside a pocket log book. The table shows a "straight" conversion from metered
f/22 to
f/235, and below that line it lists conversions for three specific emulsions (TMax 100, TMax 400, and Ektar 100 in this case).
