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Old 10th March 2008
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shenstone shenstone is offline
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Contrast detection vs Phase detection Autofocus

Seeing descriptions of the 420 and reading about it's Autofocus mechanism made me wonder a little more than I have done before of the mechanisms

i.e
Quote:
Focusing System
Method TTL phase difference detection system, contrast detection system
Focus areas 3 points / Automatic and manual selection For contrast detection AF, 11 points are used
so a quick surf later some links are offered for your delictation should you be interested ...

http://en.wikipedia.org/wiki/Autofocus

http://www.cs.mtu.edu/~shene/DigiCam...uto-Focus.html

Oh BTW Ian/John.... E-420 needs adding to the categories in this forum section

Regards
Andy
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Last edited by shenstone; 10th March 2008 at 07:08 PM. Reason: Added afterthought
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