>>4271318You are both idiots. Removing the bayer filter does not gain as much light or sharpness as you think but it does gain a lot. It is a disturbingly common belief among laymen gearfags who believe ken rockwell tier sources like sigma marketing material that black and white/foveon is four times sharper and gathers four times the light or something like that.
mono over bayer: In actuality, it's 50% sharper and gathers twice the light
foveon: loses a shitload of light through the layers and dead zones... shoot 645 instead.
-This is all you have to read-
The resolving factor variable for bayer is 2, mono is 1.41.
http://www.waloszek.de/gen_resolution_e.phpSkip to the appendix for the good stuff:
Example: 5.86 or 6 μm pixel (23.9 Megapixels, full-frame format); factor 2 for line pairs, factor 2 for color or 1.414 for b&w
Color: 1000 / (5.86 * 2 * 2) = 250 / 5.86 = 42.67 lp/mm; 1000 / (6 * 2 * 2) = 250 / 6 = 41.67 lp/mm
Black&white: 1000 / (5.86 * 1.414 * 2) = 60.3 lp/mm; 1000 / (6 * 1.414 * 2) = 500 / (6 * 1.414) = 58.93 lp/mm
So let's calculate for the m11 monochrome as well
>Sensor size, CMOS sensor, pixel pitch: 3.76 μm, 35 mm: 9528 x 6328 pixels (60.3 MP) And the K3 monochrome and K3-III. I know, pentax forces noise reduction above a certain ISO. To account for that, just shave off 5-10% in your head.
>Monochrome, CMOS. Size: 23.3 x 15.5 (mm) · Approx. 25.73 megapixels: 3.76µm.>Color: 1000 / (3.76 * 2 * 2) = 250 / 5.86 = ~66.49 lp/mm>Black&white: 1000 / (37.6 * 1.414 * 2) = ~94.04 lp/mmThis is scary close to clarkvision's 2x2 bayer vs. 3 layer color film resolution estimates, where based on testing the actual materials, he found he needed 1.5-1.6 times (~50%) more bayer resolution to equal no-cfa "film megapixels" with realistic photographic contrast ratios (
https://clarkvision.com/imagedetail/film.vs.digital.1/ )
It's not calculated, but we must assume that the 3x3 xtrans-1 CFA pattern is MUCH worse.
