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PostPosted: Fri Sep 20, 2013 4:56 am 
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Location: Kanduhar, Afghanistan
Not trying to get into what is resonable on print sizes and sensors sizes, just want to ask some questions on theroy.

I am correct that the megapixel count gives you your avalible print size of a photo? So if i have a sensor that is 18mp i could in theory produce a photo larger than a 10mp sensor, correct?

Now, ignore everything about the cameras themselves, what would be the difference of the 10.1mp APS-C sensor in a 40D and the 10.1mp APS-H of a 1D mk III?

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Mike "The Squirrel"
Canon 550D | Canon EF 35mm 1:2 | Canon 50 f/1.8 II | Sigma 18-125mm DC OS | Tamron SP 70-300mm Di VC USD | Canon 430EX II
Military Issued Canon 40D | Canon 55-250mm IS


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PostPosted: Fri Sep 20, 2013 6:41 am 
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Quote:
So if i have a sensor that is 18mp i could in theory {emphasis added by Mark} produce a photo larger than a 10mp sensor, correct?

All else being equal (which it never is in reality), yes.

Quote:
what would be the difference of the 10.1mp APS-C sensor in a 40D and the 10.1mp APS-H of a 1D mk III?

Well, assuming that by "ignore everything about the cameras themselves", you also mean to ignore differences in hardware/firmware, processing engines, sensor tech, etc. and that the smaller APS-C sensor will use more of the middle area of the (same) lens where performance tends to be better, etc., then a physically larger sensor (as opposed to a higher resolution sensor, as in your first question) shouldn't have much impact on print size outside the possibility that the larger sensor may have better low-light/high-ISO performance, and may therefor allow a larger print before noise reaches an unacceptable level. (This also obviously assumes that the same amount of noise reduction, if any, is applied to the images from both sensors in post.)

Mark


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PostPosted: Sat Sep 21, 2013 3:18 am 
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Thanks, i figured, just wanted to make sure I had the right thoughts.

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Canon 550D | Canon EF 35mm 1:2 | Canon 50 f/1.8 II | Sigma 18-125mm DC OS | Tamron SP 70-300mm Di VC USD | Canon 430EX II
Military Issued Canon 40D | Canon 55-250mm IS


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