Perceptes

I'm disappointed to see this wasn't addressed in Affinity Photo 1.7. It's still absolutely baffling to me that this isn't an extremely urgent issue for Serif and other Affinity Photo users. How on earth are people using Affinity Photo for raw photo editing with a histogram that's been broken for so long? Why doesn't Serif address this? This bug was the primary reason I gave up on Affinity Photo and reluctantly bought a Lightroom subscription, but I would prefer to return to Affinity if it was ever fixed.

Thank you—I'd seen that thread too but wasn't sure it was the same issue I was experiencing. I'm really dismayed to see that this was reported almost two years ago and hasn't been addressed. As I mentioned, this makes the develop persona very difficult to work with—perhaps even useless. That's a major flaw that I would expect to be an absolute top priority for a quick patch release. How is this not more of a problem for people using Affinity Photo in the last two years? I have a Canon T7i which uses the CR2 format, which is very widely used. It must be affecting a huge percentage of users.

I tried replying to this thread which seems related, but I didn't get a reply, so trying a new thread. When I open a CR2 raw file, the histogram appears "squished" to the left side with a bunch of seemingly unused space on the right side. If I click the develop button to move into the photo persona (without making any changes to the image at all), the histogram is more evenly distributed in a way that matches what I expect. I've tried with the develop assistant set to both 16 and 32 bit modes and the results are the same. This happens only in the desktop version of Affinity Photo (I'm using version 1.6.7 on macOS 10.14). The histogram in develop mode behaves as I would expect in the latest iPad version. Is there an explanation for this? Might I have something configured in a way that can be changed to correct this? Or is this a bug in the software? As it is, it's very hard to work with raw files on the desktop version of Affinity Photo. Attached are example histograms from the develop and photo personas, following the flow I described in my second paragraph. Thanks in advance!

Is this still not addressed/fixed? I'm unclear if this is a bug I'm experiencing or if I just have something configured incorrectly. Here is an example of what I see in the histogram when I open a raw file (develop persona) and after clicking the develop button (photo persona). This is Affinity Photo 1.6.7 on macOS 10.14.

Ah, ha! Thanks! I can confirm that I'm using the Serif Labs engine.

Thanks for the reply, @DWright. I sent you the links you requested. I am using all the defaults Affinity Photo was set to when I installed it, so I assume that means I'm using the Serif Labs RAW engine. I opened up the file again to see if there was an obvious way to tell which engine I was using and I didn't find anything. If there's a specific way I should check which engine I'm using, please let me know.

I discovered that when I export an image from Affinity Photo, a lot of the EXIF metadata that was in the original image is lost in the exported version, even if I have the "Embed metadata" option in "More" panel checked. For example, I've included a diff of the metadata present in a RAW file compared to a JPEG exported from it. Lines beginning with < are unique to the original, while lines beginning with > are unique to the export. In some cases, such as file access times, the values differ in a way that is expected, but there are many fields that are removed completely, such as "Lens ID" and all the autofocus information. Is there something I can do to make Affinity Photo preserve all EXIF metadata in exported images? I've tried on both the desktop (macOS) and iPad versions and the problem is present in both places. The closest existing topic I could find from searching is this one: 1,17d0 < AEB Bracket Value : 0 < AF Area Heights : 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 0 0 0 0 < AF Area Mode : Auto < AF Area Select Method : AF area selection button < AF Area Widths : 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 278 0 0 0 0 < AF Area X Positions : 1438 1089 497 0 -497 -1089 -1438 -1788 1089 497 0 -497 -1089 -1438 -1788 1788 497 0 -497 -1089 -1438 -1788 1788 1438 0 -497 -1089 -1438 -1788 1788 1438 1089 -497 -1089 -1438 -1788 1788 1438 1089 497 1788 1438 1089 497 0 0 0 0 0 < AF Area Y Positions : 699 699 860 860 860 699 699 699 349 430 430 430 349 349 349 699 0 0 0 0 0 0 349 349 -430 -430 -349 -349 -349 0 0 0 -860 -699 -699 -699 -349 -349 -349 -430 -699 -699 -699 -860 -860 0 0 0 0 < AF Assist Beam : Emits < AF Image Height : 4000 < AF Image Width : 6000 < AF Micro Adj Mode : Unknown (3) < AF Micro Adj Value : undef < AF On AE Lock Button Switch : Disable < AF Point Display During Focus : Selected (constant) < AF Points In Focus : 10,17,18 < AF Points Selected : 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44 < Ambience Selection : Standard 19a3 > Application Record Version : 4 21,39c5,9 < Aspect Ratio : 3:2 < Auto AF Point Color Tracking : On-Shot AF only < Auto Exposure Bracketing : Off < Auto ISO : 100 < Auto Lighting Optimizer : Off < Average Black Level : 511 511 511 511 < Base ISO : 100 < Battery Type : LP-E17 < Bits Per Sample : 8 8 8 < Black Mask Bottom Border : 0 < Black Mask Left Border : 0 < Black Mask Right Border : 0 < Black Mask Top Border : 0 < Blue Balance : 1.865234 < Bracket Mode : Off < Bracket Shot Number : 0 < Bracket Value : 0 < Bulb Duration : 0 < CR2 CFA Pattern : [Red,Green][Green,Blue] --- > Bits Per Sample : 8 > Blue Matrix Column : 0.14305 0.06061 0.71391 > Blue Tone Reproduction Curve : (Binary data 32 bytes, use -b option to extract) > By-line : REDACTED > CMM Flags : Not Embedded, Independent 41,51c11,16 < Camera Temperature : 23 C < Camera Type : EOS High-end < Canon Exposure Mode : Aperture-priority AE < Canon Firmware Version : Firmware Version 1.0.1 < Canon Flash Mode : Off < Canon Image Height : 4000 < Canon Image Size : Large < Canon Image Type : Canon EOS Rebel T7i < Canon Image Width : 6000 < Canon Model ID : EOS Rebel T7i / 800D / Kiss X9i < Chromatic Aberration Setting : On --- > Chromatic Adaptation : 1.04788 0.02292 -0.05022 0.02959 0.99048 -0.01707 -0.00925 0.01508 0.75168 > Chromaticity Channel 1 : 0.64 0.33 > Chromaticity Channel 2 : 0.3 0.60001 > Chromaticity Channel 3 : 0.14999 0.06 > Chromaticity Channels : 3 > Chromaticity Colorant : Unknown (0) 53c18,19 < Color Data Version : 15 (6DmkII/77D/200D/800D) --- > Coded Character Set : UTF8 > Color Components : 3 55,64c21 < Color Temp As Shot : 4428 < Color Temp Auto : 4428 < Color Temp Cloudy : 6000 < Color Temp Daylight : 5200 < Color Temp Flash : 6272 < Color Temp Fluorescent : 3688 < Color Temp Kelvin : 5200 < Color Temp Measured : 4428 < Color Temp Shade : 7000 < Color Temp Tungsten : 3200 --- > Color Space Data : RGB 66d22 < Color Tone : Normal 68,69c24 < Compression : JPEG (old-style) < Continuous Drive : Single --- > Connection Space Illuminant : 0.9642 1 0.82491 71d25 < Control Mode : Camera Local Control 72a27 > Copyright Notice : REDACTED 74,84c29,30 < Create Date : 2018:09:06 16:52:58.46 < Crop Bottom Margin : 0 < Crop Left Margin : 0 < Crop Right Margin : 0 < Crop Top Margin : 0 < Cropped Image Height : 4000 < Cropped Image Left : 0 < Cropped Image Top : 0 < Cropped Image Width : 6000 < Custom Picture Style File Name : < Custom Rendered : Normal --- > Creator : REDACTED > Current IPTC Digest : ecefffb351e3d6cf038c92bd05d463f2 86,95c32,37 < Date/Time Original : 2018:09:06 16:52:58.46 < Daylight Savings : On < Depth Of Field : 0.94 m (2.35 - 3.29 m) < Digital Gain : 0 < Digital Zoom : None < Directory : /Volumes/RAW Photos/09-06-18 < Drive Mode : Self-timer Operation < Dust Removal Data : (Binary data 1024 bytes, use -b option to extract) < Easy Mode : Manual < Exif Byte Order : Little-endian (Intel, II) --- > Device Attributes : Reflective, Glossy, Positive, Color > Device Manufacturer : > Device Model : > Directory : . > Encoding Process : Baseline DCT, Huffman coding > Exif Byte Order : Big-endian (Motorola, MM) 101d42 < Exposure Level Increments : 1/3 Stop 107,115c48,55 < File Access Date/Time : 2018:09:06 17:35:35-07:00 < File Inode Change Date/Time : 2018:09:06 17:35:35-07:00 < File Modification Date/Time : 2018:09:06 17:35:35-07:00 < File Name : IMG_1167.CR2 < File Permissions : rwxrwxrwx < File Size : 25 MB < File Type : CR2 < File Type Extension : cr2 < Fisheye Filter : Off --- > File Access Date/Time : 2018:09:06 18:13:39-07:00 > File Inode Change Date/Time : 2018:09:06 18:12:38-07:00 > File Modification Date/Time : 2018:09:06 18:11:10-07:00 > File Name : IMG_1167_PROCESSED.JPG > File Permissions : rw-r--r-- > File Size : 2.8 MB > File Type : JPEG > File Type Extension : jpg 117,122d56 < Flash Activity : 0 < Flash Bits : (none) < Flash Exposure Compensation : 0 < Flash Exposure Lock : Off < Flash Guide Number : 0 < Flashpix Version : 0100 127,132c61 < Focal Plane Y Resolution : 6734.006734 < Focal Units : 1/mm < Focus Distance Lower : 1.99 m < Focus Distance Upper : 3.5 m < Focus Mode : AI Servo AF < Focus Range : Not Known --- > Focal Plane Y Resolution : 6734.006711 144,148c73,74 < Grainy B/W Filter : Off < HDR : Off < HDR Effect : Natural < High ISO Noise Reduction : Off < Highlight Tone Priority : Off --- > Green Matrix Column : 0.38512 0.7169 0.09706 > Green Tone Reproduction Curve : (Binary data 32 bytes, use -b option to extract) 149a76 > IPTC Digest : ecefffb351e3d6cf038c92bd05d463f2 151,158c78,81 < ISO Expansion : Off < Image Height : 4000 < Image Size : 6000x4000 < Image Width : 6000 < Internal Serial Number : AG0649670 < Interoperability Index : R98 - 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