Nesting Lens Tubes

With nesting lens tubes, lens cells can be used within lens tubes to allow simultaneously adjustment of entire lens groups. All three sizes of lens tubes, 20, 34, and 56mm, can be connected together. 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.