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Your telescope's focuser is used to compensate for your near- or far -sightedness; 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. DIOPTRX™ models are available in .25 diopter steps, from .25 up to 2½ diopters, and are
rotatable for tuning to the best orientation. A series of engraved letters on the barrel helps to monitor orientation. Simply
choose the DIOPTRX™ model that matches your eyeglass prescription for astigmatism. All lenses are multi-coated glass in
anodized aluminum housings with rubber eyeguards.Further Reading
The following links require Adobe Acrobat Reader
* ™Tele Vue DIOPTRX Technical Notes
* Understanding Your Eyeglass Prescription
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