Canon R5 Canon R5 Cropping

[PietPienaar]

My R5 has a “Cropping/Aspect Ratio” (first menu panel) set to FULL as default. I took some images in RAW with this setting on 1.6 but the quality of the image seems to be negatively affected. Anyone with a similar experiencee or comment?

 

[RedCobra]

It's the "crop" mode and only gives you 17mps resolution but a magnification factor of 1.6x. Basically only uses the center of the lens like a FF lens on a crop body (R7) camera. Same as taking the FF and cropping it in post down to 17mps.

 

[Jake Shoots Birds]

I've seen MTF charts for an R5 in Full and 1:6 Crop mode that seem to show that the quality drops. I don't buy it except when I consider that resolution likely factors into that measure, so sure, 45MPs will show higher quality than 17MPs. But I shoot a lot of small birds and the ability to use 1.6x mode if only to reduce file size has been a blessing at times. I've noticed no difference in resulting quality.

I don't do it as much after adding an R7 to the bag which gives me both the reach and the resolution.

 

[PietPienaar]

It's the "crop" mode and only gives you 17mps resolution but a magnification factor of 1.6x. Basically only uses the center of the lens like a FF lens on a crop body (R7) camera. Same as taking the FF and cropping it in post down to 17mps.

Great info! Thanks RedCobra.

 

[PietPienaar]

Great info! Thanks RedCobra.

Thanks for great info!

 

[Dave Williams]

The 1.6 crop mode can be beneficial in as much as it aids AF and eye detect. Less pixels but sharper focus perhaps? You would in all probability crop those shots later anyway so might as well do it in camera.

 

[ReneM]

My R5 has a “Cropping/Aspect Ratio” (first menu panel) set to FULL as default. I took some images in RAW with this setting on 1.6 but the quality of the image seems to be negatively affected. Anyone with a similar experiencee or comment?

My understanding was that this was if you used lenses only compatible with cropped sensor cameras and that images were recorded with only o think 6megapixels

 

[AKVet]

Late reply... I have been using crop mode quite a bit lately. So 500mm @ 1.6 crop mode gives me an effective focal length of 800mm. Yes, its less pixels (17mp before post cropping), however, I have had great success with it.

Here are examples of the IQ...

• Join to view EXIF data.

• Join to view EXIF data.

 

[ACEkin]

Is there any difference between setting the crop mode in the camera and taking the full-frame image and cropping later?

 

[AKVet]

I saw a post, perhaps in this forum, where someone did a review comparing full-frame and post cropping vs crop mode. It was mostly a wash between the 2 camps. For me, after I experimented with the setting, I was so satisfied with the results that I didn't bother calculating the difference in megapixels.

 

[Dave Williams]

I have noticed that eye detect mode finds the eye in crop mode when it struggles in full frame.

 

[ACEkin]

I don't have an R5 to try, but I wonder if the "crop mode" image can be displayed with full-frame content in Canon DPP. A while back, for an article I was writing, I changed the aspect ratio on my 5D M4 to 1:1 which yielded square images in Lightroom. But I could display the full-size frame in DPP. This is purely a curiosity question for me, but may have some benefits to R5 users. I am not sure.

 

[AKVet]

I don't have an R5 to try, but I wonder if the "crop mode" image can be displayed with full-frame content in Canon DPP. A while back, for an article I was writing, I changed the aspect ratio on my 5D M4 to 1:1 which yielded square images in Lightroom. But I could display the full-size frame in DPP. This is purely a curiosity question for me, but may have some benefits to R5 users. I am not sure.

Interesting! I don't use DPP and I am far too lazy to do the experiment - haha! However, maybe others in our forum may have some experience with your question. I would love to hear from them.

BTW, just as an aside. I also have the R6 Mk II (I really love this camera) and I have compared the digital extender on R6 Mk II with the R5 1.6 crop mode and, as many might expect, the crop mode's IQ was much better.

 

[RedCobra]

Is there any difference between setting the crop mode in the camera and taking the full-frame image and cropping later?

No

 

[Kerro]

Late reply... I have been using crop mode quite a bit lately. So 500mm @ 1.6 crop mode gives me an effective focal length of 800mm. Yes, its less pixels (17mp before post cropping), however, I have had great success with it.

Here are examples of the IQ...

View attachment 19610

View attachment 19611

These are great images. I must try the crop mode myself.

 

[Kerro]

I wonder. RF 800 F11 in crop mode. Could work.

 

[AKVet]

I wonder. RF 800 F11 in crop mode. Could work.

Should work fine. The advantage of the R5 crop mode over the extenders is that you still maintain the aperture. I don't use my extenders any longer with the R5. I only use them with the R6 MkII.

 

[Kerro]

Should work fine. The advantage of the R5 crop mode over the extenders is that you still maintain the aperture. I don't use my extenders any longer with the R5. I only use them with the R6 MkII.

Another set-up for me to try out and post to here. I need to try it out on the next full moon. My view of the moon here in Mandurah is pretty good and the light pollution is fairly negligible. I only have the EF 2x extender so my 800 F/11 will be a good try out in crop mode.

 

[koenkooi]

The 1.6 crop mode can be beneficial in as much as it aids AF and eye detect. Less pixels but sharper focus perhaps? You would in all probability crop those shots later anyway so might as well do it in camera.

The AF system has to process 1.6 times fewer lines per frame, so it's "faster", but it depends in the situation if you're actually going to notice a difference. In my experience, it seems to be slightly better at detecting eyes at the same distance, but I don't have any proper data on that.

 

[Eilert Anders]

Where do we get a 17 mega pixal crop mode with the R5? By my reckoning it is 28 mega pixels

 

[David Berry]

Where do we get a 17 megapixel crop mode with the R5? By my reckoning it is 28 mega pixels

Eilert…

The following is my simplified understanding of the situation:

• 45 MP ÷ 1.6 ÷ 1.6 ≈ 17 MP

A full-frame sensor is approximately 1.6 times as wide and 1.6 times as high as an APS-C sensor; therefore, divide twice. I'll leave length of the diagonals — which is probably what we should be referring to — out of the discussion. (My maths is rusty!)

The figures below suggest that if one wants to set an R5 to crop mode by default, it might be preferable to purchase a crop sensor camera instead. (Of course, there is more to the story.)

… David

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• R5 : full frame (actual sensor size)
  • 44.8 megapixels
• R5 : crop mode
  • 17.3 megapixels
• R7 : APS-C (actual sensor size)
  • 32.5 megapixels

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