Astromania Off-Axis Guider with Micro-Focusing - for Successful Astronomy Photos Without A Guide Scope - Bundle with - Bundle with - T Ring for Nikon-F & M48-T2 Adapter
T ring for Nikon-F SLR/DSLR: Compatible with Nikon SLR/DSLR Camera with F-Bayonet (Please Attention); including Camera Nikon D90 D80 D70 D60 D50 D40x D40 D800 D700 D600 D300s D300; Equipped with one hex wrench that achieve camera's easy angle adjustment
M48X0.75 female thread "for 2" adapter" to M42X0.75 male thread adapter
Converts an M48 male thread to a T2 male thread
This device sits in 2 inch focuser in front of camera; small prism direct little light from telescope into separate tube where guide camera or crosshair eyepiece is attached; correct tracking errors which camera is exposing image for perfectly round star
For refractors scs maks and rc telescopes; off-axis guider only 24mm in overall length; robust yet light 5.45mm optical transmission full illumination; micro focusing especially smooth helical focusing with 0.05mm accuracy; 75mm of back focus