Celestron Dielectric Star Diagonal 1.25" With Twist-Lock (93571) Accessory maximizing light transmission

maximizing light transmission

2 m) Interpupillary Distance (max): 72mm (2

The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky)

25" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae

T-Adapter for 9

Celestron Dielectric Star Diagonal 1.25" With Twist-Lock (93571) Accessory maximizing light transmissionEnsure maximum light transmission without loss of optical quality with the Celestron Dielectric Star Diagonal, 1. 25 with Twist Lock. Upgrade your existing star diagonal to this premium one and enjoy brighter, sharper images without replacing your telescope. This star diagonal reflects the telescopes light path 90 to provide a more comfortable viewing angle. In addition, the glass has 58 layers of dielectric coatings, which provide an over 99%