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Canon EOS R6 mark II analysis for night/astro imaging

Started 2 months ago | Discussions thread
Bigger Contributing Member • Posts: 640
Re: Canon EOS R6 mark II analysis for night/astro imaging

fred 76 wrote:

The thin horizontal and vertical central lines are normal. What is less normal are the two other thin lines above and below the horizontal axis, most probably due to the dual pixel structure of the sensor.

But it has no visible impact on the images. At least, nobody has been able to show any evidence.

Interesting why those extra lines would be horizontal for vertical dual pixels.

I have found that the dual-pixel arrangement reduces horizontal MTF (vertical edges) by ~25% on the R7 with a high resolution lens. Not sure why.

Canon DP sensor H/V MTF50 resolution directional?

The R5 is also affected (but not the 5DsR), so presumably the R6/R6ii too.

I would expect this to cause very sharp stars to appear slightly oblong along the long axis of the image, but maybe not enough to be noticeable?

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