ronnyb Posted September 13, 2024 Posted September 13, 2024 When using Sony .ARW files, the white balance slider is incorrectly displaying degrees Kelvin; it shows cooler temperatures having lower Kelvin values than warmer temperatures. This is backwards. Lower temperatures are warmer/yellower than higher temperatures, which are bluer, colder. Thanks for taking a L👀k at this and all you do! Quote 2021 16” Macbook Pro w/ M1 Max 10c cpu /24c gpu, 32 GB RAM, 1TB SSD, macOS Sequoia 15.1 2018 11" iPad Pro w/ A12X cpu/gpu, 256 GB, iPadOS 18.1
Ron P. Posted September 13, 2024 Posted September 13, 2024 In all my editing apps, cooler temp is lower Kelvin. It's logical. Cooler=cold, which is almost always a lower Kelvin value. 32 deg F is colder than 80 deg F right? Notice the numbers, colder is less than the hotter. The sun does not look blue, it appears red or a orange, fire is more red. Quote Affinity Photo 2.6..; Affinity Designer 2.6..; Affinity Publisher 2.6..; Affinity2 Beta versions. Affinity Photo,Designer 1.10.6.1605 Win11 Home Version:24H2, Build: 26100.1742: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz, 3301 Mhz, 6 Core(s), 12 Logical Processor(s);32GB Ram, Nvidia GTX 3070, 3-Internal HDD (1 Crucial MX5000 1TB, 1-Crucial MX5000 500GB, 1-WD 1 TB), 4 External HDD; Wacom Intuos 3 PTZ-431W
Ron P. Posted September 13, 2024 Posted September 13, 2024 Are you not seeing this in AP? Moving the slider to the Right increases the Kelvin value, making the image warmer. Moving it to the Left, decreases the Kelvin value, making the image cooler. For demo I show LR and then AP. 2024-09-13_07-08-02.mp4 ronnyb 1 Quote Affinity Photo 2.6..; Affinity Designer 2.6..; Affinity Publisher 2.6..; Affinity2 Beta versions. Affinity Photo,Designer 1.10.6.1605 Win11 Home Version:24H2, Build: 26100.1742: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz, 3301 Mhz, 6 Core(s), 12 Logical Processor(s);32GB Ram, Nvidia GTX 3070, 3-Internal HDD (1 Crucial MX5000 1TB, 1-Crucial MX5000 500GB, 1-WD 1 TB), 4 External HDD; Wacom Intuos 3 PTZ-431W
markw Posted September 13, 2024 Posted September 13, 2024 From a pure physics point of view yes hotter (higher energy) objects produce more blue light, cooler ones more red. For example new young hot stars tend to appear blue, older dying stars tend to be red and cooler. But in the world of graphics and lighting the emotional perception of blue being cooler and red being hotter is used. Ron P., ronnyb and Old Bruce 3 Quote macOS 12.7.6 | 15" Macbook Pro, 2017 | 4 Core i7 3.1GHz CPU | Radeon Pro 555 2GB GPU + Integrated Intel HD Graphics 630 1.536GB | 16GB RAM | Wacom Intuos4 M
ronnyb Posted September 14, 2024 Author Posted September 14, 2024 We don’t need to get into astrophysics or anything other than your camera’s white balance setting, or your light’s color temperature. It’s ALWAYS warmer light is lower degrees kelvin, and cooler lights are higher degrees. We are not running a physics simulation, I just want my RAW developer sliders to match my light’s and cameras color temperature settings… Maybe a preference/Setting for the Raw developer ? Quote 2021 16” Macbook Pro w/ M1 Max 10c cpu /24c gpu, 32 GB RAM, 1TB SSD, macOS Sequoia 15.1 2018 11" iPad Pro w/ A12X cpu/gpu, 256 GB, iPadOS 18.1
carl123 Posted September 14, 2024 Posted September 14, 2024 20 hours ago, ronnyb said: When using Sony .ARW files, the white balance slider is incorrectly displaying degrees Kelvin; it shows cooler temperatures having lower Kelvin values than warmer temperatures. This is backwards. Lower temperatures are warmer/yellower than higher temperatures, which are bluer, colder. Thanks for taking a L👀k at this and all you do! Explained why, in this thread walt.farrell 1 Quote To save time I am currently using an automated AI to reply to some posts on this forum. If any of "my" posts are wrong or appear to be total b*ll*cks they are the ones generated by the AI. If correct they were probably mine. I apologise for any mistakes made by my AI - I'm sure it will improve with time.
ronnyb Posted September 14, 2024 Author Posted September 14, 2024 It’s funny, I thought we were using a photo RAW Developer to edit COLOR temperature, not a “physics simulator” adding heat temperature to an image…. In the photo context, lower K = warmer COLOR temp and higher K = cooler COLOR temp. Its called COLOR temperature not energy or heat temperature for a reason. @Ron P. When I took astronomy courses in college back in the day, we learned the stars that burn (HEAT) cooler in Kelvin temp have LOWER color temperatures (warm yellowish color tones) than stars that burn HOTTER in temperature and emit cool color tones (blueish whites). This is backwards in Affinity. No need to reinvent the wheel…. Quote 2021 16” Macbook Pro w/ M1 Max 10c cpu /24c gpu, 32 GB RAM, 1TB SSD, macOS Sequoia 15.1 2018 11" iPad Pro w/ A12X cpu/gpu, 256 GB, iPadOS 18.1
Murfee Posted September 15, 2024 Posted September 15, 2024 21 hours ago, ronnyb said: This is backwards in Affinity. No need to reinvent the wheel…. They are not reinventing the wheel, as far as I am aware all RAW developers follow this standard. Can you please show us any that are using the way you are suggesting. ronnyb 1 Quote
ronnyb Posted September 15, 2024 Author Posted September 15, 2024 My Godox studio lights have a color temperature range I can set, from 2700° which is very warm/yellowish white to 9000° which is cold, blueish white... Quote 2021 16” Macbook Pro w/ M1 Max 10c cpu /24c gpu, 32 GB RAM, 1TB SSD, macOS Sequoia 15.1 2018 11" iPad Pro w/ A12X cpu/gpu, 256 GB, iPadOS 18.1
Murfee Posted September 15, 2024 Posted September 15, 2024 Lights yes I would expect that. I asked for a raw developer. Quote
Ron P. Posted September 15, 2024 Posted September 15, 2024 I just checked all software that I have, that are capable of RAW development. All of them use the same standard. Higher Kelvin=Warmer, Lower Kelvin=Cooler. Photo Editors Affinity Photo LightRoom Corel Paintshop Pro Corel Photo Paint Canon Digital Photo Pro Video Editors DaVinci Resolve Corel VideoStudio ronnyb, Murfee, markw and 1 other 3 1 Quote Affinity Photo 2.6..; Affinity Designer 2.6..; Affinity Publisher 2.6..; Affinity2 Beta versions. Affinity Photo,Designer 1.10.6.1605 Win11 Home Version:24H2, Build: 26100.1742: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz, 3301 Mhz, 6 Core(s), 12 Logical Processor(s);32GB Ram, Nvidia GTX 3070, 3-Internal HDD (1 Crucial MX5000 1TB, 1-Crucial MX5000 500GB, 1-WD 1 TB), 4 External HDD; Wacom Intuos 3 PTZ-431W
Murfee Posted September 15, 2024 Posted September 15, 2024 1 minute ago, Ron P. said: I just checked all software that I have, that are capable of RAW development. All of them use the same standard. Higher Kelvin=Warmer, Lower Kelvin=Cooler. Exactly, I can add Capture One Nikon Studio Raw Power i am just curious what Software RonnyB is using that has prompted the request to go against industry standard, and accusations of reinventing the wheel ronnyb 1 Quote
Staff Chris B Posted September 17, 2024 Staff Posted September 17, 2024 Hi ronnyb, I certainly appreciate your comments, however, we are happy with the way this is working and it does match other apps. I'll add Photoshop to the mix of the above listed apps that display it this way. ronnyb 1 Quote How to format a bug report | Learning Resources | List of V2 FAQs | YouTube Tutorials
A.2001 Posted December 11, 2024 Posted December 11, 2024 Hi Guys, why when I take a raw picture from my Canon R8, with a 3800K and I open it with Affinity photo, the app changes the WB to 4000K and changes the shape and focus? Thxs Quote
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