Lens Mount Barrel, 6.35 mm, M20.25 RMS Lens Mounts

The B6.35 Lens Mount Barrel can be used to create optical systems by mounting it to X26 Rails and Carriers via SB or CB Series Lens Barrel Holders. The lens barrels consist of a M20.25 RMS threaded body for mounting into B18 Series Lens Mount Barrels, and a retaining ring for 6.35 mm diameter lenses. When screwed together, the lens is securely held in place. For thick lenses, the retaining ring is reversible. Two or more lens barrels can be threaded end-to-end to construct simple optical systems. Several accessories are provided to assist in creating optical systems.