M66 Female to M54 Male Adapter (for SW Esprit 100) (PegasusAstro, SKU: PEG-ADAPT-M66F-M54M) enables connection of the Sky-Watcher Esprit 100 flattener to accessories featuring an M54 thread.

Key features

• M66 female to M54 male thread
• thread pitch: M66 × 1.0 mm and M54 × 0.75 mm
• optical length (backfocus): 15.8 mm
• designed for SW Esprit 100 flattener

In the box

• M66 female to M54 male adapter

Technical specifications

• backfocus: 15.8 mm
• thread 1: M66 × 1.0 (female)
• thread 2: M54 × 0.75 (male)

Allows integration of the SW Esprit 100 flattener with M54-based imaging systems and helps achieve the required backfocus distance.