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-   -   Implications of not having independant Iris/shutter control?? (https://www.dvinfo.net/forum/techniques-independent-production/102016-implications-not-having-independant-iris-shutter-control.html)

James Millward August 24th, 2007 09:28 AM

Implications of not having independant Iris/shutter control??
 
Hey guys, Im a complete novice looking for a camera.

The cams Im looking at have some degree of manual control, BUT dont have independance between Iris and shutter speed.

So I can set the shutter speed, and the gain/iris will be automatically added, OR I can set the iris, and the shutter will be adjusted.

Can someone explain the implicationsof this to me please? I have built a 35mm dof device, so I need to able to lock the iris and prevent it opening too far, BUT what will this mean if I cant adjust my shutter??

If the image is too dark (or the camera thinks it is) and I have locked the iris, wont it reduce the shutter speed??

Mnay thanks
Jim
tbip2001

Marcus Marchesseault August 27th, 2007 05:30 AM

It will only reduce the shutter to a certain speed. Since you live in PAL land, it will default down to 1/50 shutter which looks fine. Regardless, not having manual control of the exposure will be very challenging when using a 35mm adapter.


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