Merrill sensored cameras ARE 30MP luminance equivalents to 30MP cameras!

Started Jan 15, 2013 | Discussions thread
Gate bois
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Re: Merrill sensored cameras ARE 30MP luminance equivalents to 30MP cameras!
In reply to RonJG, Jan 17, 2013

RonJG wrote:

Lin Evans wrote:

Hi Ron,

Please don't confuse pixel count, display size in percentages and resolution. You're falling into the same trap created by marketing which millions of others have.

Resolution is measured in visible line pairs on standardized resolution charts and "not" by the number of pixels and certainly not by the percentage reported by software to "fill the screen."

The term "X" megapixels resolution is only even roughly useful when comparing sensors with very similar construction and then only a "correlation" between the number of pixels in the output file and the optical resolution as measured on standardized resolution charts.

Comparing the number of pixels produced in the output file of a Foveon sensor and the number of pixels produced in the output file of a CMA sensor with an AA filter and equating these figures to optical resolution is virtually useless.

Best regards,

Lin

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learntomakeslidshows.net

Maybe I should do this in pictures. You guys are simply not getting what I've said.

If I take the Nikon D800E images down to the same level of magnification as the SD1M images, the Nikon images, already cuttingly sharp, are even sharper and more detailed.

If I go the other way, and uprez the SD1M images to match the same screen size magnification as the Nikon images, the Sigma images lose detail significantly.

Someone here recently suggested I process the SD1M images to double size in SPP to try to equalise the output. Tried that and was very disappointed with the result.

There is no AA filter on the Nikon D800E by the way.

Ron

Some test: DP2m-DP1m interpolated vs. D800E and other apn.

http://forums.dpreview.com/forums/post/42239360

http://forums.dpreview.com/forums/post/42250671

http://forums.dpreview.com/forums/post/42250697

This page and the following.

http://forums.dpreview.com/forums/thread/3290031?page=4

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