Q2M and Capture One - crops

[kirkmc]

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Two questions about working with files from my new Q2M. 

I'm using Capture One. When I import files, I can see that the default 28mm crop doesn't cover the entire image; there's a fair amount outside the crop in C1 that is available. Any idea why this is happening?

When I use a crop in the camera, I see the lines in the EVF and LCD, and when I play back the photos I see the lines too, even on DNG files. (I'm shooting only DNG.) Is there any way to get software to recognize those crop lines when I import files? 

Thanks in advance. 

[kirkmc]

For the former, I found a thread here with an AppleScript. I'm still curious about the latter. 

[jaapv]

The extra pixels are a result of the digital lens correction, in this case distortion correction. They are cut off because the image quality outside the 28mm frame is insufficient. For this reason the lens is, in reality, approx 24 mm.

[marchyman]

Leica says the Q2 Monochrom has 47.3 million effective pixels.  Note the word effective.  The sensor captures more pixels but uses the extra pixels to correct for lens distortions as jaapv noted.   The effective image size of the Q2M is 8368 X 5584 pixels.  That's what you get if you set your Q2M to create jpeg images.

When you enable the crop tool Capture one shows all the pixels with the crop lines set to the rated effective pixel size.   At least it does that with my Q and I'm assuming it handles the Q2M the same way.  When I look at a DNG from my Q I see it is the rated 6000 x 4000 pixels in size.   When I enable the crop tool I see pixels outside of the crop area.  When I adjust the crop to include those "extra" pixels the crop took tells me I'm looking at 6459 x 4101 pixels.   That is more than the published effective size.  It also isn't a 2 x 3 aspect ratio.  There are more extra pixels in the horizontal direction.

What do you see if you compare the capture one "crop" with an out-of-camera jpeg?  I suspect the image size will be the same.

[hdmesa]

On 9/6/2021 at 2:31 AM, kirkmc said:

...Is there any way to get software to recognize those crop lines when I import files? 

Thanks in advance. 

No, Capture One does not support crop instructions in the RAW, but Lightroom does.

[nicci78]

Q2 is a 50MP with 26mm lens permanently crop into 47MP and 28mm. 
C1 can let use access to trashed pixels. Quite useful for panoramic shots. 

[kirkmc]

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14 hours ago, hdmesa said:

No, Capture One does not support crop instructions in the RAW, but Lightroom does.

As I mentioned above, I found an AppleScript solution on the forums that can apply the correct crop after import. Very useful. 

[hdmesa]

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Edited September 9, 2021 by hdmesa
Posted on wrong thread