M48 Extension Ring (2") - 28mm mounting adapters and the M48 one has

and the M48 one has an internal thread that can fit 2" filters

Device fully supports ASCOM switch

You can achieve up to 25% shorter exposure times and sharper imaging than

1920 × 1080 40

M48 Extension Ring (2") - 28mm mounting adapters and the M48 one hasAluminium Extension Tube 2" with double sided 2" filter thread length 28mm The extension tube is simply screwed into the M48 filter thread from 2" eyepieces or 2" adapters and therefore will extend the barrel. Therefore the fitting accuracy of an adapter can be greatly improved. These tubes are also important for astrophotography when the correct distance between corrector and camera sensor is required. In this case, just a few millimeters can be