Q3 banding and other related issues ?

[jaapv]

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There is a good example on the RED site - note the explanation:

https://support.red.com/hc/en-us/articles/360041816533-DSMC2-RANGER-Flare-Grid-Pattern

 

Quote

f you have seen red dots when shooting directly towards the sun or a very bright light, what you are seeing is to be expected.  This is an optical artifact caused by the OLPF (Optical Low Pass Filter) in the camera between your lens and sensor.  The OLPF acts like two mirrors facing each other and as the light shines through the lens and reflects off the OLPF, the red dots become more visible as you reduce the aperture on your lens. 

Note that this is not just a RED camera issue but happens any other digital cameras that have a Low-Pass Filter or other structure in front of the sensor.

(*) The "other structure" being the IR fllter.

Nobody can doubt the quality of that huge sensor. Nor is there any PDAF as far as I know. 

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[goodbokeh]

jaapv there two comments I have about about your Red camera link above:

First, the Sony sensors in my Fuji 100S and Sony A7R5 don't have optical low pass filters that the Red article is about;

Second, you will notice in the photo I provided that the grid flare is not just red but also green and blue colors, the entire Bayer matrix is involved. That is different than the Red article details.

I don't doubt the quality of my 100S and my A7R5 but I also recognize they have a weakness, grid flare, that I need to keep an eye on in strong backlighting. Because of the shared Sony sensor technology Q3 owners should test for this issue.

[jaapv]

Yes, other sources mention other colours, your observation is correct. The Beyer filter is deeper in the filter stack and unlikely to have an effect It  has to do with the coatings on the mirroring structures

Notice that the RED explanation mentions “other structures “. On sensors  without LPF that is the IR filter. It does not matter what type of filter does the reflecting It only takes two mirrors and an overly bright small point light source.

[SrMi]

51 minutes ago, goodbokeh said:

jaapv there two comments I have about about your Red camera link above:

First, the Sony sensors in my Fuji 100S and Sony A7R5 don't have optical low pass filters that the Red article is about;

Second, you will notice in the photo I provided that the grid flare is not just red but also green and blue colors, the entire Bayer matrix is involved. That is different than the Red article details.

I don't doubt the quality of my 100S and my A7R5 but I also recognize they have a weakness, grid flare, that I need to keep an eye on in strong backlighting. Because of the shared Sony sensor technology Q3 owners should test for this issue.

IIRC, both Sony and Fuji have relatively thick cover glass. While M11 and Q3 may share the underlying sensor technology with Sony and Fuji, the toppings (micro lenses, cover glass, IR filter) are completely different. 
 

[goodbokeh]

16 minutes ago, SrMi said:

IIRC, both Sony and Fuji have relatively thick cover glass. While M11 and Q3 may share the underlying sensor technology with Sony and Fuji, the toppings (micro lenses, cover glass, IR filter) are completely different. 
 

Maybe Leica sensor toppings will make a difference. As far as I know the M11 sensor doesn't have PDAF pixels but then again Leica has been close to the vest on that sensor's details.

[SrMi]

56 minutes ago, goodbokeh said:

Maybe Leica sensor toppings will make a difference. As far as I know the M11 sensor doesn't have PDAF pixels but then again Leica has been close to the vest on that sensor's details.

No, M11’s sensor does not have PDAF pixels.