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I often see comments that one should just crop instead of using a 2x extender. As an experiment, I stacked 2 extenders. It was cloudy, so there is high ISO noise. Today, I was able to get macPorts to successfully build gmic-gimp, so I used gimp to fu...
Sometimes I see questions about whether DPP software can upscale an image. The answer is yes that if one checks the resize box in the save dialog, then DPP is willing to upscale up to 300%. As a general rule, I think it is unwise to upscale more than...
White-throated Sparrow (Zonotrichia albicollis) in Norman, Oklahoma, United States on January 27, 2025 Camera is EOS R5 Software is Canon DPP, exiftool, https://github.com/google/jpegli , and graphicsmagick Camera Model NameCanon EOS R5Lens ModelEF10...
I often see comments that it is better to crop than use an extender. I disagree and think that the Canon extenders together with the digital lens optimizer in Canon DPP software work very well. I hope this example will be helpful to some. The advanta...
I also put this story at https://www.rsok.com/~jrm/eagle.htmlIt was challenging to make this photo. I was standing in the blind at at Salt Plains National Wildlife Refuge in Alfalfa County, Oklahoma, United States. The water level was very low. As a ...
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