shutter angles on Beaulieu 4008 ZM II

[Nagarjuna]

Yes, what are exactely the shutter angles on the three respective opening alternatives on these machines? And, what would their corresponding exposure time be for 24 fps? I am planning to shoot a scene with two cameras, one of which is of the abovementioned model, the other a Beaulieu 6008 S, of which I know the specifications, so I just need the ones for ZM II to get the exposure as similar as possible.

Thanks a lot for any advice on this!

[S8 Booster]

Check: http://www.jl-site.com/Production/Shutter/Angles.html

&

http://jl-site.com/Super8/ShuterSpeed.html





R

[Guest]

Very Nice, thanks a lot! Now comes the tricky part; I´ll be metering my scenes with my sekonic manual, analogue lightmeter, and I´ll have to do the calculations myself to get the right exposure (the dial is set to a normative exposure of 1/50 sec. at 24 fps). My lightmeter-manual´s way to find the right exposure for a camera with a deviating exposure-time, is the following:

T= A/(360xR)

where R = fps
T = Exposure time
A = Shutter angle

Although the Beaulieus are guilliotining, and thus don´t have a shutter angle proper; for the sake of getting my equation working, could I put in a comparative shutter angle? Compared to other cameras giving approximately the same frame-exposure at 24 fps, that would give me something like 102 degrees - is that risky business, or should it work? If not; what other options should go for to get similar exposures?[/i][/list][/list]

[Basstruc]

Don't forget also that your lens, unless you're using angenieux 1,2/6-80 or 1,2/6-90 ( not the 1,4/6-90 ), is marked F-stop, not T-stop. As there's no informations on converting, you've got to do your own test.
Matt