TS-OPTICS M68 TILTER March_Madness Trolley mounting kit and wheels

Trolley mounting kit and wheels for Geoptik Elephant 520 hermetic case - 30B061

M16 by Stefano Salvi | Quattro 200 f/4

Calcium offers TWO strong absorption lines at 393

The original AZ2000 was also produced in the special “Antarctica” version

TS-OPTICS M68 TILTER March_Madness Trolley mounting kit and wheelsMany astrophotographers know the problem: after accurate focusing, in one or two corners the stars are not pinpoints. Often, the sharpness of the image is compromise to a level that the image has to be cropped. Some possible causes of this problem are: a tilted camera sensor (fraction of a millimetre are enough) a tilted focuser a tilted focal plane of the telescope (common in Newtonian telescopes) tilted optical accessories by imprecise clamping As