William Optics 4" M92 male to M92 female extension ring (SKU: P-M92EX)

William Optics 4" M92 male to M92 female extension ring (William Optics, SKU: P-M92EX) is an optical train extension with M92 threads on both sides. The name 4" is the product designation; this extension has an optical length of 67 mm.

Key features

• threaded M92–M92 connection
• increased spacing between optical train components

Included items

• adapter by William Optics

Technical specifications

• input thread: M92, male
• output thread: M92, female
• optical length: 67 mm

The extension provides the required spacing in an optical train using compatible M92 connections.