Check the listing for details. Telescope lens. Condition: New. Listed at 16.00 USD. Telescope lens Optical Tube Length 1.25 Inches Eye Piece Lens Description Barlow Objective Lens Diameter 1.25 Inches Product Dimensions 1"D x 1"W x 3"H Focus Type Manual Focus Doubles the Magnification: This 2X Barlow lens doubles the magnification and capacity of any 1.25 inch eyepiece at the cost of a single eyepiece. Interface with M42x0.75 Thread: With T/T2 (M42x0.75mm) male thread for T/T2 connectors, work as a t adapter. Connect DSLR or SLR camera to telescope easily via a separate sale t ring adapter. (Adapter not included) Multilayer HD Broadband Green Film Optical Glass Lens: Offer a high quality observation without introducing additional chromatic aberration. Chromatic corrected; provide high transmittance; ensure clear; sharp views. Quality Made: Aluminum stock and black anodized body, precision machined; sturdy for a long term use. Free Dust Cap: Keeps lens clear easily with 2 pairs of dust cover. With safety undercut and brass compression ring, ensure the eyepiece barrels will not be marred by the captive set screw