topic Re: EOS R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories. in Camera Software

EOS R6 Mark III Firmware 1.1.0 makes pics too dark in macOS Preview app and Instagram Stories

OzanAktas — Wed, 12 Aug 2026 12:10:33 GMT

Hello. I want to report a firmware update problem about Canon R6 mark3 (1.1.0). After the firmware CR3 file acts a little weird. I am processing photos on my Macbook 16' M4 pro (Tahoe 26.5.2). After the firmware update I have two different problems. New updated firmware CR3 files shows so much darker ''Preview App'' images versus Quick look option on Mac and Previous pre-updated firmware CR3 files. For example I am opening older photos on same mac and operating system, everything is consistent. Newer files doesn't match on Preview App images. The second problem is The Instagram Stories. I can post normal posts as jpeg files. Colors, brightness etc are normal. But the Story photos looksso much darker and desaturated. It's not the problem with older pre-updated firmware photos. I tried multiple older and newer photos on the same laptop, same operating system, they are not the same anymore. New firmware update affacted badly on the Instagram Story images and preview App! But Photoshop (27.8) work normal!

Re: Canon R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

SignifDigits — Sat, 08 Aug 2026 17:31:50 GMT

Reporting to this Canon user social forum does not ensure that your message will get to Canon. There two other ways that you can submit your requests to Canon:

Call Canon with your concerns. If you are in the US use the "CLICK HERE FOR SUPPORT NUMBERS BY GROUP" at https://www.usa.canon.com/contact-us/support
Click on the "[+] Feedback" button in the upper right corner of that page.

Re: Canon R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

jrhoffman75 — Sat, 08 Aug 2026 17:43:18 GMT

Try using Canon DPP4 and see if that app has a problem.

Re: Canon R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

Peter — Sat, 08 Aug 2026 20:30:04 GMT

Use a file host and share two raw samples. One before and one after.

Re: EOS R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

OzanAktas — Wed, 12 Aug 2026 00:46:47 GMT

https://www.dropbox.com/scl/fo/2pqrjiluirezi3aylemc4/ABY24uRf8DdoBrkCaIbIGn8?rlkey=qc41btv3bpt01m3sekh7o8hrr&st=jm8zt6vw&dl=0

Re: Canon R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

OzanAktas — Wed, 12 Aug 2026 00:53:22 GMT

I just shared the dropbox folder for the photos before and after the latest firmware update. Before the firmware update CR3 files looks identical on Preview App and works normal in DXO Pure Raw 5. However after the newest 1.1.0 update CR3 files looks so dark on Preview and DXO Pure Raw 5. If I process the photos on DXO it opens in Photoshop just dark like the preview. So I cannot use noise reduction with DXO with original files as normal brightness and saturation anymore. But photoshop open and edits any new updated firmware photos normally. I am not %100 sure if the firmware update is the problem, but I didn't change anything else but firmware.

Re: EOS R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

OzanAktas — Wed, 12 Aug 2026 01:08:39 GMT

Problem solved! It was actually Highlight Tone Priority was ON. I tried some photos with Highlight tone was off and everything looks normal again. I don't know why but Mac OS Preview App and DXO Pure Raw 5 shows photos so dark when Highlight Tone priority ON. Anyway thank you everybody.

Re: EOS R6 Mark 3 Firmware 1.1.0 problem about Mac OS Preview APP and Instagram Stories.

Peter — Wed, 12 Aug 2026 06:16:45 GMT

With HTP you underexpose the raw file 1 stop, so it is normal.