Photoshop Astrophotography processing

Hi @chuckw12268738 ,

I'm sorry you're having a problem.

Using our current 24.0 release, I just tried converting a 32 bits/channel RGB image to 16 bits using the Exposure and Gamma Method and am unable to reproduce the problem you're describing. 

We'd like to better understand and try to reproduce the problem you have described - could you please share your astroimage (or a small part of it with which you can reproduce the problem), a screenshot of the exact parameters you're using to make the translation, and your Help > System Info content.

If you'd rather not share information publicly, you may feel free to reach out to me via eMail at:  carboni@adobe.com

Thanks.

P.S., some settings that may help with both isolating and working around the problem that you can try, one at a time and restarting Photoshop:

• Preferences > Technology Previews:  Older GPU mode (pre 2016)
• Preferences > Technology Previews:  Deactivate Native Canvas
• Preferences > Technology Previews:  Precise previews for 16-bit documents
• Preferences > Performance:  Use Graphics Processor

-Noel Carboni
 Adobe Quality Engineering Developer

It's a while since @Noel Carboni  has posted to this forum, but his site ProDigitalSoftware still lists a number of astronomy tools that work with Photoshop.  You never know. He might pop by as it's a subject dear to his heart.

https://www.prodigitalsoftware.com/AstronomyToolsActions.html

Could you please post a screen shot?