"you'll see the real mechanic structure"Yeah, saw it! Thanks. But the diagnosis means that the "ND-filter" item in the "Extra photo operations" menu is an atavism and will not work correctly. As I described above, it works only in non-script mode, and the result is not reflected in EXIF. So it gives the doubtful result. Setting ND-filter IN/OUT gives maybe 1 step, maybe more. Now I have a courage to try "set_av", at least.
The next issue is a set of props, I found here the most fresh "
New Digic IV". Doubtful that it's fully convenient to our camera (as well as all previous sets). Now I'm trying to set/determine the shooting process, and any of props 200 - 210 don't return anything except zeros. The #208 seems to give a 1 after a shot is made, but it's marked as "Flash Ready status" in the previous "Digic III & Digic IV" propset.
Seems that branch is abandoned by developers, so we have to maintain it

Our beta seems to be far from end
