M54 Male to M42 Male Adapter (PegasusAstro, SKU: PEG-ADAPT-M54M-M42M) enables connection between M54-threaded components and accessories with an M42 (T2) thread. The M54 side also features an internal M48 thread.

Key features

• M54 male to M42 male thread
• 0.75 mm thread pitch
• internal M48 thread on the M54 side
• compact low-profile design

In the box

• M54 male to M42 male adapter

Technical specifications

• adapter (backfocus) thickness: 2.0 mm
• M54 thread: M54 × 0.75 (4 mm thread length)
• M42 thread: M42 × 0.75 (male)
• internal thread on M54 side: M48

Allows direct integration of M54 components with standard M42/T2 accessories.