SKYWATCHER F/4 APLANATIC COMA CORRECTOR cassegrain treated for outdoor use

treated for outdoor use

The effect is similar to wind gusts that do ruin your shots

It combines the advantages of the equatorial mount with the simplicity of the alt-azimuth system

Geoptik padded bag for Geoptik Hercules 47 wooden tripod - Low version #30H106 and tripods of similar dimensions

SKYWATCHER F/4 APLANATIC COMA CORRECTOR cassegrain treated for outdoor useThe SkyWatcher aplanatic coma corrector is specifically designed for the SkyWatcher Newton Quattro. It is aplanatic (free from spherical aberration) and it corrects the coma on Newton telescopes with a focal ratio of f 4. Newton telescopes, with such a short focal ratio, are free from field distortion and the astigmatism is not particularly strong. However, the coma aberration makes this telescope unusable with large sensor cameras. The SkyWatcher