These pictures were taken with a Nikon Coolpix 4300 handheld over the ocular on my ETX-125
They were edited with Photoshop Elements - Auto levels and Auto Contrast then an unsharpen mask
I didn't need to reduce noise in the black areas since the built in noise reduction in the Coolpix completly eliminated it.
Here i got very lucky with longer exposure time and higher magnification i was able to shoot Jupiter
No editing was possible, just not enough to work with here. It's just cropped down