Quote Originally Posted by iogdka View Post
I have been using pinhole assist for a while now, and it is really becoming a useful little app.

A question and an observation:

Question: What is the difference between the ASA setting on the exposure page and the ASA setting on the film page? I'm pretty sure I know what the latter does, but not so sure about the former.

Observation: I seem to get longer exposure times (1.5-2x) using this app (without accounting for reciprocity) than by using zero image's wheel or the pinhole designer charts. Am I using the program incorrectly, and is that somehow related to my question?

David
Hum, this is right : I checked the app upon David's remark, with the "sunny rule" : f/16 with EV=15, for 100 ASA, give a speed of 1/100
There is an error in the computation : the app give a +1IL result (ie it double the time of exposure". I do not know since when this bug was introduced, at least since v1.7.
I will release an update as soon as possible (ie within one week).
Meanwhile, I advised you set a correction of -1 IL to get the correct value.