Thursday, July 9, 2026

More Processing Practice

I have had to get in the habit of cropping certain focal lengths in order to get the field of view Canon intended. As I mentioned in Lots of Corrections four days ago, the wide end of the 28-70mm lens and pretty much all focal lengths of the 16-28mm lens capture a wider file which then needs corrections to be useable. JPGs in the camera and files processed with Canon software do this seamlessly, my preferred DxO PhotoLab less so.

PhotoLab, the way I have it set up at least, automatically applies distortion and vignetting corrections based on a lens profile but not the necessary cropping. Without cropping, the files are not the 3:2, 6000 X 4000 pixel files Canon intends. Extra steps but not complicated.

Here are some images from this morning's sunrise.

RF 28-70mm f/2.8 at 55mm, f/2.8, 1/250 sec., ISO 400

RF 28-70mm f/2.8 at 70mm, f/4, 1/250 sec., ISO 200

RF 16-28mm f/2.8 at 16mm, f/5.6, 1/250 sec., ISO 100

RF 28-70mm f/2.8 at 38mm, f/22, 1/125 sec., ISO 200

RF 28-70mm f/2.8 at 28mm, f/16, 1/180 sec., ISO 200

RF 28-70mm f/2.8 at 37mm, f/22, 1/125 sec., ISO 200

RF 16-28mm f/2.8 at 16mm, f/8, 1/180 sec., ISO 200

RF 16-28mm f/2.8 at 16mm, f/8, 1/250 sec., ISO 200


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