Questar telescope (3.5 inch) photo. Experiment to coax detail out of images acquired with the Q and a Nikon D850 using Topaz AI software.
Imaging acquired with a Questar telescope with a Nikon D850 camera and a Tamron 1.4X teleconverter to fill the full frame. A bit of experiment to test a camera teleconverter rather than an axial barlow lens. The image comprises a HDR of RAW 9 X 0.3 stop exposures at iso 400 stacked, then deconvoluted, and adjusted with Photoshop all in TIF before converting to this JPG. The jpg was then processed using Topaz gigapixel AI that doubled the image and adjusted other parameters. The final image is huge 16k x 10k and can be downloaded from here: https://www.flickr.com/photos/eliot_photos/47969956338/