Mikhail Kartashov

I wonder if it's a focal length, or this specific implementation a cause.

Good to know, thanks Jim

I can only hope it was automated... I wonder if use of an iq4 150 + lots of averaging would significantly impact your result.

Jim, do you use any form of multiexposure (i.e. frame averaging, etc)?

Better equipment may inspire psychologically and/or technically to do more shots in more diverse settings. There's a chance of skill' substitution, but more experience is generally better than less. ...

Jim, I agree there's plenty of green, that's why I mentioned only the red being low. Getting back to the original problem - it's just an unlikely for most of images to have very low 2 channels out ...

One came to my mind, but it is the one mostly lacking red. Those lights are sure not typical indoor lights, but also not lasers.

Jim, I can't possibly require anything from you, a fellow forum reader who shares awesome insight into technical side of imaging. I thought gb channels would be nearly zeroed, but apparently I'm ...

The purpose was to see if there's a difference between predominantly r channel vs rgb. If levels of gb are high enough, demosaicing will still use them to reconstruct the pattern, just with extra ...

Jim, Re red chart: fascinating. Any chance you could check if g/b channels were dark enough? Regards, Mikhail

Jim, Sounds good, thanks for the examples.

Jim, Nope, my interest in theoretical side of image acquiring and processing not as high. Thanks for your work.

BTW. Have you ever tried to take a picture of pseudorandom noise pattern at around pixels resolution and demosaic it?

Jim, If one takes a picture of a saturated red flower, cfa raw file will have 3/4 of photosights having very low signal. Hence, it would be impossible/hard to expoit correlation between r/g/b ...

I'm referring to a substantial lack of signal for 2 out of 3 channels, when pattern is highly monochromatic. Not to wavelength-aperture effects. Aperture is, but sampling density is not, as there ...

Unless a red or blue fine pattern being photographed. Green pattern to a lesser extent. Unless high iso noise overruns resolution of the cfa equipped sensor, but not yet the achromatic one. Mikhail

Price difference between r5 and r6 should be considered within a context of needed lenses and accessories. Plus, possibly, other expenses. Respectfully, Mikhail

Defishing a fish-eye image might be an interesting option. Given a real estate and resolution of a 44x33 sensor and fairly sharp fisheye lenses it might be worth it. I've been impressed so far, ...

About 30k, for a certified used one. But... a few more for an xf or xt body. Probably a lens too, unless one is going to use older or off system lens. Mikhail

The problem at hand is late arrival of Sony, with its cmos sensors, to mfb scene. Price-wise more or less reasonable high res backs are 80mp ccd, but we have been spoiled by cmos for many, many ...