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Showing posts from February, 2024

Moon with a vintage Jason telescope

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02/18/2024 -- With clear skies but a giant moon overhead, after some initial experiments with a Nikon Nikkor 300mm F4.5 IF ED AI-S Manual Focus Telephoto Prime, decided to get out the vintage Jason 700mm F11.6 singlet and test it out with the Panasonic Lumix GH5 attached to the business end.  Used the incredibly bad Celestron CG-3 just to hold the scope in place using the vixen dovetail on the OTA. Results from stills (edited in digikam):  And a video edited in Davinci Resolve 18.6:   02/19/2024:  Repeat on a second night.  Found counterweights and other parts for the CG-3.  What an awful mount...no idea why I'd purchased such a terrible piece of equipment.  But basically as a fixed mount with a lightweight OTA and no wind...it's fine.  Skies were similar to last night...cloud free. Seeing forecast from meteoblue for 02/19/2024 With counterweights and knobs on the mount, centering the moon and positioning for photos and video worked far better.  Experimented with several exposu