Sergei Golyshev (AFK during workdays)
Resolving the Moon
Strictly for full-size viewing :)
Those, who are familiar with the Moon, check me, please - I see three craterlets at the bottom of Plato here. Can you?
Extra magnification out of thin air :) While normally 2x Barlow lens gives effective focal length of 960 mm, adding an extension tube AFTER it increases EFL to whole 1122+ mm, depending on exact position of the camera in relation to the tube flange. I think even 1200-1300 mm is possible.
Technicalities:
Acquisition time: 20.03.2016 20:10 MSK
Telescope: Meade series 6000 80 mm f/6 ED triplet with 2x Barlow lens and extension tube, EFL 1122 mm, f/14.
Camera: TIS DMK 23U274 (Sony ICX274AL, 1/1.8", 1600x1200).
Panoramic image of 6 panels, 150 out of 2500 frames each (very variable seeing).
Datasets stacked in AS!2, deconvolved and wavelet-sharpened in AstraImage 3.0 PRO, stiched in MS ICE and processed with CLAHE plug-in for ImageJ.
Resolving the Moon
Strictly for full-size viewing :)
Those, who are familiar with the Moon, check me, please - I see three craterlets at the bottom of Plato here. Can you?
Extra magnification out of thin air :) While normally 2x Barlow lens gives effective focal length of 960 mm, adding an extension tube AFTER it increases EFL to whole 1122+ mm, depending on exact position of the camera in relation to the tube flange. I think even 1200-1300 mm is possible.
Technicalities:
Acquisition time: 20.03.2016 20:10 MSK
Telescope: Meade series 6000 80 mm f/6 ED triplet with 2x Barlow lens and extension tube, EFL 1122 mm, f/14.
Camera: TIS DMK 23U274 (Sony ICX274AL, 1/1.8", 1600x1200).
Panoramic image of 6 panels, 150 out of 2500 frames each (very variable seeing).
Datasets stacked in AS!2, deconvolved and wavelet-sharpened in AstraImage 3.0 PRO, stiched in MS ICE and processed with CLAHE plug-in for ImageJ.