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Re: Correct shutter settings for progressive?

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Re: Correct shutter settings for progressive?
by Bill Ravens (cuervo) on Feb 6, 2008 at 2:48:22 am

Shooting progressive is the same as shooting interlaced, as shutter speed is regarded. When the shutter is turned off, the effective shutter speed is the same as the frame rate, ie, 24 fps is 1/24, 30 fps is 1/30, etc.

When the shutter is turned on, the slowest you can go in 24 fps is 1/32 sec.

As for exposure with interlaced vs progressive, interlaced appears to be more light sensitive because your essentially exposing two fields per frame ( 180 deg shutter) for twice the exposure. In progressive mode, you expose one full field per frame, so for the same exposure you need to reduce the shutter speed by 1/2.



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