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Talk:Rotary disc shutter

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This is an old revision of this page, as edited by Theharis (talk | contribs) at 23:04, 24 February 2009 (→‎the calculation-formula is wrong??: new section). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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the calculation-formula is wrong??

I would like somebody to dubbelcheck this, but the

Shutter Angle/360 = Exposure Time/Frame Intervall

formula is wrong, it doesen't come out right. for example: a pretty usual set of numbers for this would be a shutter angel of 180, which would at 25 fps give us an exposure time of 50 (1/50 of a second) hence:

180/360 = 0.5

50/25 = 2

2 does not equal 0.5 obviously. but what does come out right is switching the place of "shutter angel" and "360"

360/Shutter Angel = Exposure Time/Frame Intervall ==> 360/180 = 50/25 = 2

Seems like an honest misstake, but can somebody confirm this so we can change it?

Thank you.