Tele Vue DIOPTRX 2.50 Astigmatism Corrector Tiffen 565GR3 this lens does not accept

this lens does not accept screw-on filters

Improved Dataline Protection (1Gb)

SHAPE C300 Plate Adapter

bright aperture and distance markings are printed on the lens barrel facing laterally to facilitate easier control by a focus puller

When installing the plate

Tele Vue DIOPTRX 2.50 Astigmatism Corrector Tiffen 565GR3 this lens does not accept2. 50 Dioptric Correction Corrects User's Astigmatism Eliminates the Need for Eyeglasses Attaches Directly onto Eyepieces Tele Vue 's DIOPTRX 2. 50 Astigmatism Corrector allows those with astigmatic vision to enjoy a sharp viewing experience without having to wear their prescription eyeglasses. Use this 2. 50 dioptric correction if your eyeglass prescription has the same cylinder value so you can achieve tack sharp focusing with the naked eye, which