Exposure adjustment sets Gamma Correction to 0.01 automatically (Photoshop v27.x / Windows 11)

[juan_camilo_7521]

Steps to reproduce:
1. Open Photoshop v27.x on Windows 11.
2. Open any image (8-bit PNG/JPG).
3. Go to Image > Adjustments > Exposure...
4. Move the Exposure slider (for example, +0.5).
5. Observe the Gamma Correction slider: it instantly jumps to 0.01 and the preview becomes heavily distorted.

Actual result:
Gamma Correction resets to 0.01 automatically after moving the Exposure slider, producing a washed-out / broken preview.

Expected result:
Gamma should remain stable or adjust smoothly; it should not reset to an extreme value.

System info:
- Photoshop version: 27
- OS: Windows 11
- GPU: RTX 5070 (12GB)
- GPU acceleration: Enabled
- Bit depth: 8 bits/channel

[Srishti Bali]

Hi @juan_camilo_7521,

Thanks for sharing these detailed steps — that really helps! I tried replicating this on my Windows machine (Photoshop v27.x), but it’s working as expected for me. The Gamma Correction value stays at 1.00 even after adjusting the Exposure slider.

Could you please share a few more details to help us narrow this down?

• Does this happen with all images or only specific files?

• Have you tried resetting Photoshop preferences after creating a backup of your current settings? (This is important as we might need the backup later.) You can find the steps to back up and reset preferences here: Reset Photoshop preferences.

• Are any third-party plug-ins installed or running in the background?

We’re assuming this might be a post-update glitch, but let’s confirm with a few more checks before escalating.

Regards,

Srishti

[davescm]

I cannot replicate this here either using Windows 11 and  Photoshop Version: 27.0.0 20251015.r.25

RTX3090 24GB 
Dave

[juan_camilo_7521]

Hi @Srishti Bali 

Thanks for the answer, I'm going to attach a video of my problem. It happens with any type of file, I even tried changing the bit depth to 16-bit for the files, but nothing fixed it. I've been dealing with this for a couple of days. I'm going to try resetting the preferences as you suggested. I don't use any plugins, just the base program.