RGB sliders and or histogram sliders.

[Former user]

Probably my biggest issue is the rather crude 2 number input under options to set the stretch. I often like to boost to look for detail or nebuloity then reduce the stretch for looking at tone and quality. It's a pain typing guess work numbers in the options.

Sharpcap has the best histo and histo adjustment system. If we had similar with nina.. just another OH WOW.

[Ron Kramer]

These sliders can also be used to REDUCE the brightness level of the nasa sky survey. I know many complain about. The other surveys are quite SLOW - so we’re forced to use nasa and many of the images are a white out. In SGP framing wizard I use to use the hostogram silder that is presented for subs… on the nasa survey images and it worked nicely to bring them down and reveal detail.

[Stefan B]

the auto stretch is already powerful and there are no plans to have a full histogram adjustment tool. the nasa sky survey is also improved in 1.10 for increased contrast.