Coma Corrector:

With the focuser of your telescope, you can compensate for your short- or long-sightedness. DIOPTRX compensates for your astigmatism.

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

With the focuser of your telescope, you can compensate for your short- or long-sightedness. DIOPTRX compensates for your astigmatism.

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Adapter für 2.7x Barlow

Item condition: new and original packed

APM 2 inch coma-correcting telecentric 1.5x Barlow

Item condition: new, but not original packed

2" Parallizer Adapter für APM 2 Zoll komakorrigierende 1,5x telezentrische Barlow

Item condition: new and original packed

Glas FK61 (similar to Ohara FPL51), has blackenededges, a measured transmission von over 99% from 400 nm to 700 nm, optimized for F/4 Newtonian-Telescopes. The barlow has a negative focal length of - 62.9 mm and a working backfocuse of 105 mm from center last lens to focuse ( eyepiece field stop). You will need now a 1.25" eyepiece holer 104 mm long

Item condition: new and original packed