Televue 4 Radian for sale. Some will think the mod. will detract from it's value, others will think it's value is enhanced by 3 professionally tapped set screw holes in the ring of the Instadjust. Three set screws (6-32) will secure the instadjust with very light tightening against the rubber grip, below. When the eyepiece is handled, it is silent and does not slip from setting. Aditionally, with this setup, only the "DEC" Digital camera adapter ring is needed for use with digital camera, as the "DRA" series includes a sleeve that serves the same purpose as the above described mod.
The threaded holes are equidistant around the eyepiece and are located on the green ring as illustrated.
Includes: eyepiece, box, both end caps, documentation, and allen wrench. The eyepiece barrel has no set screw marks, the optics, mint. $175 money order or cashier's check includes shipping in 48 states.
Thanks for looking.