Sort by:
AstroZap 85mm-95mm; ETX-80AstroZap 90mm-100mm; ETX-90AstroZap 101mm-110mm dia.; ED 80AstroZap 110mm-120mm dia.; ETX-105AstroZap 136mm-146mm dia.; ETX-125AstroZap 155mm-165mm dia.; 130mmAstroZap 193mm-204mm dia.; 152mmAstroZap 216mm-231mm dia.; 8" SCTAstroZap 247mm-266mm dia.; 9" SCTAstroZap 280mm-298mm dia.; 10" SCTAstroZap 280mm-304mm dia.; 10" LXD 75 MeadeAstroZap 298mm-316mm dia.; 11" SCTAstroZap 330mm-342mm dia.; 12" SCTAstroZap 395mm-405mm dia.; 14" SCTAstroZap 180mm-190mm dia.; 6" SCT
AstroZap - AstroCaps - Bahtinov Focusing Caps
$75.10 – $203.50
Description Getting perfect focus with the telescope when making astrophotographs can be very difficult to do, and serious astrophotographers have long used various tools such as Hartmann Masks, or knife-edge...