Tele Vue Dioptrx 3.00 Astigmatism Corrector - DRX-0300 13mm Eyepieces with less need to move

with less need to move the binoculars

A great Mars filter for all telescopes

Celestron Tripod adapter threads are included on the 42mm sizes

6-element fully multi-coated optics create sharper images

Tele Vue Dioptrx 3.00 Astigmatism Corrector - DRX-0300 13mm Eyepieces with less need to moveTeleVue Dioptrx 3. 00 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