Sean Foo Posted August 1, 2023 Share Posted August 1, 2023 I have this moon shot with black sky/background, developed in Affinity Photo (2.1.1) on MacOS Ventura 13.4.1(c) on Mac mini M1, there's this weird mesh shows up in dark area, I don't see the same appear in Canon T3i raw file. This screen shot is with extreme setting just to show the problem, attached is the afphoto file with the raw embedded. 2023-07-31-EOS 6D Mark II-_MG_6237.afphoto Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted August 1, 2023 Share Posted August 1, 2023 This is normal. The pattern is just noise from the sensor, and noise reduction should be used to remove it. The noise pattern is rectangular, and distorted by lens correction into oval shapes. If you deactivate lens correction, the pattern is rectangular again. i have thousands of moon shots with Canon 1200D and 80D, all show similar patterns. The more modern 6D M2 has a sensor wich produces more noise vs the older Camera models , and relies on the improved Camera processor to remove noise computationally. As Affinity does not apply noise removal by default (in contrast to Canon JPG engine and DPP and all other apps), you can spot this artifact. Just apply noise reduction in Develop Petsona. Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps. Link to comment Share on other sites More sharing options...
Sean Foo Posted August 1, 2023 Author Share Posted August 1, 2023 15 hours ago, NotMyFault said: This is normal. The pattern is just noise from the sensor, and noise reduction should be used to remove it. The noise pattern is rectangular, and distorted by lens correction into oval shapes. If you deactivate lens correction, the pattern is rectangular again. i have thousands of moon shots with Canon 1200D and 80D, all show similar patterns. The more modern 6D M2 has a sensor wich produces more noise vs the older Camera models , and relies on the improved Camera processor to remove noise computationally. As Affinity does not apply noise removal by default (in contrast to Canon JPG engine and DPP and all other apps), you can spot this artifact. Just apply noise reduction in Develop Petsona. I tried to apply noise reduction in Develop Persona, it does help a bit but still visible, I ended up exporting a TIFF from DPP (love the Digital Lens Optimizer) and continue processing in Affinity Photo 2 Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted August 4, 2023 Share Posted August 4, 2023 On 8/1/2023 at 11:38 PM, Sean Foo said: I tried to apply noise reduction in Develop Persona, it does help a bit but still visible, I ended up exporting a TIFF from DPP (love the Digital Lens Optimizer) and continue processing in Affinity Photo 2 That is the best way to work with Canon RAW files. DPP is far superior in several aspects like noise reduction, CA correction, and batch processing of RAW. Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps. Link to comment Share on other sites More sharing options...
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