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k1 pixel shift - can you see the different?

Started 4 months ago | Discussions thread
flektogon
flektogon Veteran Member • Posts: 6,226
Re: k1 pixel shift - can you see the different?
1

James O'Neill wrote:

So if the K1 sensor could resolve 3680 Monochrome light and dark line pairs over its width, (i.e. 7360 pixels) and the lens can also resolve 3680 light/dark pairs over that width, (i.e. both resolve a line 1/200th mm wide) the finest line we can see in the output is 1/100th mm wide. (This is sometimes quoted as 1/image_res = 1/lens_res + 1/recording_res) . So your theoretical "36M detail" lens and a 36MP sensor can only resolve 9 million ~details.

James, that formula is perfectly valid for a combination of lens and film! But not for the digital film (i.e. sensor). If a given lens can deliver the same amount of details as is the sensor pixel count, it is possible that all those details will be recorded. but...

Imagine that the lens is projecting on a sensor a board with black-and-white fields (like a chess board) having together 36 million fields. If such a subject was perfectly projected on (aligned with) the sensor pixels, all 36 million fields will be recorded. One field, one pixel. Of course, just a half point shift in both dimensions and you would get just one, gray field. So, statistically you can record 18 mega details. Well, this "statistics" may not be valid as it is my invention , but please, read my response to JeremieB below.

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Regards,
Peter

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