For guider scope or finder scope interface; solution for telescopes or telephoto lenses with sluggish focusing; fixed orientation so no rotation of mounted cameras or eyepieces or field of view with guide star when focusing
Upgrade R and P focuser by adding to the end of one focuser by using Astromania M42x0.75 Female to M42x0.75 Female Thread Telescope Adapter 9mm; please make sure that there is M42x0;75 male thread on R and P focuser
Made by full metal; one side of double helical focuser is M31X0.5 male thread; 1.25 inch accessory collar with M42x0.75 male T-thread flangeand accesory collar thumbscrews on the other side that install StarShoot AutoGuider or 1.25 inch eyepiece
2 inch helical focuser designed specifically for astrophotography; fits onto any 6 inch focuser
Approximately 0.1mm focusing precision with 43mm of travel; improves focusing precision