Nesting Lens Tubes (10, 12.7, 15 and 20mm Lenses)

There are three sizes of Nesting Lens Tube groups, large, medium and small, to cover the main lens diameters. The small size (20mm) along with the lens cells covers lenses with diameters 10, 12.7, 15 and 20mm. All three sizes of lens tubes, 20, 34, and 56mm, can be connected together. Lens cells are used within lens tubes to allow adjustment of lens groups simultaneously. They also allow small optics to be easily mounted in the same lens tube with larger optics. The threads used with the Nesting Lens Tube family are common to other OptoSigma optomechanical hardware allow mixing of tube mounted optics with existing mounts and optic holders.