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Old 13-10-2017, 07:57 AM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
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Does using a focla reducer reduce exposure time?

Does a focal reducer allow more light to hit a sensor or is that only controlled by the aperture?

It would seem it would focus more light from a wider field of view onto the sensor thus more flux. Or is that only controlled by the aperture?

Greg.
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