Tele Vue Dioptrx 0.50 Astigmatism Corrector - DRX-0050 Tele Vue Focal Length: 20mm

Focal Length: 20mm

Baader Dark Blue 435nm Bandpass Filter Features

all LX90 models

and enjoy the fact that the extension is also threaded for a filter

TeleVue 31mm Nagler Type 5 Eyepiece - 2" Features

Tele Vue Dioptrx 0.50 Astigmatism Corrector - DRX-0050 Tele Vue Focal Length: 20mmTeleVue Dioptrx 0. 50 Astigmatism Corrector for TeleVue Eyepieces Got astigmatism? Get the "cure" Your telescope's focuser is used to compensate for your near or far sightedness; TeleVue Dioptrx compensates for your astigmatism. These units attach and lock onto the tops of over 20 long eye relief Tele Vue eyepieces to achieve the sharpest full field viewing possible. TeleVue Dioptrx models are available in . 25 to 3. 25 diopter (1 4 steps from . 25 to