30 Day 100% money back guarantee.  Heavy‑duty Edmund Optics focusing tube for LS‑Series and other M72 × 0.75 lens stacks. The 60 mm inner bore accepts large‑format objectives or relay optics, while the integrated helicoid provides fine axial adjustment for critical focus and back‑focus tuning. A knurled aluminum lock ring fixes position without image shift, making this mount ideal for telecentric set‑ups, line‑scan cameras, and custom metrology rigs. Interior is matte‑black threaded to suppress stray light; exterior shows only light handling marks—no dents, no seized screws, no cross‑threads. No optics included. Ships from Carol Stream, IL, double‑boxed for protection.
Keyword Block: edmund optics focusing mount, m72 helicoid, 60mm id tube, precision lens adapter, machine vision hardware, ls series accessory

Item Specifics

• Brand: Edmund Optics

• Series: LS‑Series / M72 Accessories

• Part Type: Focusing Tube with Lock Ring

• Thread Spec: M72 × 0.75 (male‑to‑female)

• Inside Diameter: 60 mm

• Focus Mechanism: Helicoid with lock ring

• Travel Range: ~45 mm (manual adjustment)

• Material: Black‑anodized aluminum

• Unit Weight: ~1.4 lb

• Condition: Used

• Ships From: Carol Stream, IL, USA