American Photonics 20mm Diameter Lens Tubes with ZnSe Focus Lens. 50.8 mm (2.0") W/Nozzle
$70.00
Description
Easy clean lens assembly that can be cleaned without touching it..The lens is suspended in the tube using glue for stress-free optical focusing..You can select a focal length from 38.1mm(1.5"), 50.8mm(2.0"), 63.5mm(2.5"), 101.6mm(4.0"), or other focal lengths available on request for the same price..APC holds a +/- .15mm(.006") tolerance on focal length on all our lenses..The distance from the front of the nozzle to the perfect focal point is 10.5mm (the same as a AAA battery).
