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09-29-2010, 06:37 PM   #1
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Sensor Size

Hope I've put this in the correct place.....

The K20D's CMOS sensor is 23.4mm X 15.6mm, I believe. Can someone tell me the size of a APSC sensor? Reading the specs for some Sigma lenses has prompted this question.

Thanks.

Peter.

09-29-2010, 06:42 PM   #2
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All Pentax DSLRs have APS-C sized sensors
09-29-2010, 07:14 PM   #3
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Wikipedia sez APS-C is 25.1 16.7 mm.
The term originally was for one aspect size of the APS-C film format.
The digital version is slightly smaller.
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