Tele Vue Delos 17.3mm Eyepiece - 1.25

Article number: EDL-17.3
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This Tele Vue Delos Eyepiece has a 17.3mm focal length and is presented in a 1.25" format. Continuously adjustable height eyeguard system that can be locked in any position. This Tele Vue 17.3mm Delos Eyepiece achieves full field sharpness, virtually perfect f θ (theta) distortion mapping, and color neutrality. Delivers 20mm eye-relief and a realistic 72° apparent field of view.

Model # EDL-17.3
Focal Length (mm) 17.3
Barrel Size (in.) 1¼"
Apparent Field of View (deg.) 72
Eye Relief (mm) 20
Weight (lb / oz) 0.90 / 14.4
Field Stop (mm) 21.2



Includes continuously adjustable height eyeguard with index marks.

Paracorr Type-2 Use

The 2" to 1¼" In-Travel Adapter makes 17.3mm and 14mm Delos models parfocal with most Tele Vue 1¼" eyepieces that use the Paracorr Type-2 reducing adapter. 

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