SM2 Lens Tube SM2-50D

The LBTEK 2-inch stackable slotted lens tube features side slots, enabling quick and easy assembly of complex optical components while allowing adjustment of optical elements without disassembling the setup. Multiple retaining rings can be used to mount several optical elements within a single lens tube. First, screw the first retaining ring to the required depth, place the optical element, and then secure it with the second retaining ring. The side slots allow manual adjustment of optical elements without requiring a retaining ring wrench. The lens tube comes with a rotatable sliding cover that can conceal the slots, preventing stray light from entering the system while maintaining optical cleanliness. Each lens tube includes two retaining rings.