snarby97 Posted December 1, 2021 Posted December 1, 2021 Files DNG files come in flat compared with JPG files. Further DNG and JPG have similar vibrancy when viewed in Windows Photo viewed. Please see attached file. 1. first picture is a screenshot of the DNG file in Windows Photo 2. Second picture is a screenshot of the JPG file in Windows Photo 3. Third picture is a screenshot of the DNG file in Affinity Photo - lacks vibrancy 4. Forth picture is a screenshot of the JPG file in Affinity Photo Thanks Stuart Affinity Photo Raw Pentax k1 II issue.pdf Quote
NotMyFault Posted December 1, 2021 Posted December 1, 2021 Hi Stuart, welcome to the forum. What you observe is mostly by design. The JPEG files are processed in Camera using certain settings, often sharpness, white balance, brightness, saturation. Affinity only uses white balance and exposure, but ignores most other settings. This explains the different rendering. Other Apps display either the embedded JPEG, or could interpret and apply all settings. In Photo, you can apply the „missing“ adjustments in Photo persona, and save them even as presets for easy reuse. In rare cases (new camera models), Affinity might be unable to correctly interpret RAW files. Dan C 1 Quote Mac mini M1 A2348 | MBP M3 Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K 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. I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.
Dan C Posted December 2, 2021 Posted December 2, 2021 Hi @snarby97, Welcome to the Affinity Forums I can confirm as NotMyFault has mentioned above, this is expected behaviour when opening DNG files for RAW processing in Affinity. When viewing the DNG file in Windows Photo Viewer, you aren't viewing the RAW file itself, it's actually previewing an embedded JPEG file which has already been processed by the camera. When opening the DNG file in Affinity, we read the 'flat' RAW data, which has not had any adjustments applied to it - hence it looks 'washed out' in Affinity. This means you're able to use the Development and Photo Persona within Affinity Photo to adjust the tones in the image to your liking, rather than using the tone matched JPEG produced by the camera. I hope this clears things up! Quote
snarby97 Posted December 3, 2021 Author Posted December 3, 2021 On 12/2/2021 at 1:36 AM, NotMyFault said: Hi Stuart, welcome to the forum. What you observe is mostly by design. The JPEG files are processed in Camera using certain settings, often sharpness, white balance, brightness, saturation. Affinity only uses white balance and exposure, but ignores most other settings. This explains the different rendering. Other Apps display either the embedded JPEG, or could interpret and apply all settings. In Photo, you can apply the „missing“ adjustments in Photo persona, and save them even as presets for easy reuse. In rare cases (new camera models), Affinity might be unable to correctly interpret RAW files. Thankyou for your explanation. Do you know how to find out the jpg settings or is it trial and error in the photo persona? Quote
snarby97 Posted December 3, 2021 Author Posted December 3, 2021 23 hours ago, Dan C said: Hi @snarby97, Welcome to the Affinity Forums I can confirm as NotMyFault has mentioned above, this is expected behaviour when opening DNG files for RAW processing in Affinity. When viewing the DNG file in Windows Photo Viewer, you aren't viewing the RAW file itself, it's actually previewing an embedded JPEG file which has already been processed by the camera. When opening the DNG file in Affinity, we read the 'flat' RAW data, which has not had any adjustments applied to it - hence it looks 'washed out' in Affinity. This means you're able to use the Development and Photo Persona within Affinity Photo to adjust the tones in the image to your liking, rather than using the tone matched JPEG produced by the camera. I hope this clears things up! Thanks for your help and explanation. Is it possible to apply the JPG settings to the DNG file. Ie can you determine what the jpeg settings are and apply them Quote
NotMyFault Posted December 3, 2021 Posted December 3, 2021 1 hour ago, snarby97 said: Thankyou for your explanation. Do you know how to find out the jpg settings or is it trial and error in the photo persona? With help of exiftool or other apps capable to extract all exif data. If you can upload an example RAW file, we can check. Please note which settings you were using during capture. I thing almost every camera will display this if you inspect RAW images. Jpeg images normally do not contain all this information, it depends on camera brand and settings in camera. For some cameras, it is adjustable what gets stored as exif metadata. Quote Mac mini M1 A2348 | MBP M3 Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K 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. I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.
snarby97 Posted December 3, 2021 Author Posted December 3, 2021 9 hours ago, NotMyFault said: With help of exiftool or other apps capable to extract all exif data. If you can upload an example RAW file, we can check. Please note which settings you were using during capture. I thing almost every camera will display this if you inspect RAW images. Jpeg images normally do not contain all this information, it depends on camera brand and settings in camera. For some cameras, it is adjustable what gets stored as exif metadata. Thanks. Please find file attached. IMGP2133.DNG Quote
NotMyFault Posted December 3, 2021 Posted December 3, 2021 13 minutes ago, snarby97 said: Thanks. Please find file attached. IMGP2133.DNG 52.01 MB · 0 downloads Here some excerpts from the exif data (file attached): I marked some orange which i assume are ignored by Affinity ISO : 6400 Exposure Compensation : 0 Metering Mode : Multi-segment Auto Bracketing : 0 EV, No Extended Bracket White Balance : AutoSaturation : 0 (normal)Contrast : +1 (medium high) Sharpness : +1 (medium hard) Baseline Exposure : -0.5932617188 Default Crop Origin : 8 10 Default Crop Size : 7360 4912 The image opens in Photo severely overexposed. If i reduce exposure by -0.6 (rounded) it looks ok. IMGP2133.txt Quote Mac mini M1 A2348 | MBP M3 Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K 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. I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.
snarby97 Posted December 4, 2021 Author Posted December 4, 2021 4 hours ago, NotMyFault said: Here some excerpts from the exif data (file attached): I marked some orange which i assume are ignored by Affinity ISO : 6400 Exposure Compensation : 0 Metering Mode : Multi-segment Auto Bracketing : 0 EV, No Extended Bracket White Balance : AutoSaturation : 0 (normal)Contrast : +1 (medium high) Sharpness : +1 (medium hard) Baseline Exposure : -0.5932617188 Default Crop Origin : 8 10 Default Crop Size : 7360 4912 The image opens in Photo severely overexposed. If i reduce exposure by -0.6 (rounded) it looks ok. IMGP2133.txt 33.53 kB · 0 downloads Thankyou Quote
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