EOS R6 Mark II Movie cropping mode's impact on image quality

[Mohamed-Azmey]

Hello, I'm using Canon EOS R6 mark II with RF 100mm Macro lens for underwater Macro videos shooting normally on Clog 3 4k 60FPS.

The question is as I'm seeing lots of different thoughts about it.

If I enable the Movie cropping mode it will automatically magnify my shoot area which is needed, but will that affect my recording quality especially for post editing if i'm going to zoom it a little more.

1- some of people are saying that if i use crop mode it will use the full sensor ration on the cropped area so the Video will be more enhanced and will not lose quality before post editing and still can zoom extra in Post editing without losing quality / resolution.

2- The other thoughts are saying: since i'm using Movie crop Mode then i will be using around 70- 60% of the sensor and i will be losing quality even if i'm not zooming into the post editing tool.

Kindly advise on which approach is correct.

[p4pictures]

The EOS R6 Mark II sensor has 6000 x 4000 pixels. When you enable movie cropping it uses a central portion of the sensor with the necessary 3840 x 2160 pixels to make a 4K frame. So it is actually using the correct number of pixels and not interpolating.

Without movie cropping it uses more pixels and downsamples to 4K. This downsampling can improve the quality a little, but honestly most people will not see it. So if you are able to zoom in to a regular uncropped 4K frame, then you can with the cropped version.