Cloud Break Optics

M66 Female to M54 Male (For SW Esprit 100)

M66 Female to M54 Male (For SW Esprit 100) - Main image
$32.46 $47.04 In stock

Category: Astrophotography Accessories

M66 Female to M54 Male

PEG-ADAPT-M66F-M54M

  • Thread: Pitch M66/1.0mm, M54/0.75mm
  • Connects SW Esprit 100 Flatenner with any M54 threaded accessories

    SW Esprit 100 + PEG-ADAPT-M66F-M54M + Pegasus Astro Indigo OAG + Pegasus Astro Indigo Filter Wheel + QHY268M Camera = 63mm optimal backfocus distance

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Customer Reviews (4.4 / 5 · 5 reviews)

Amelia ★★★★★

Finally got my Esprit flattener connected to my filter wheel without any wobble — the M66 and M54 threading is precise and tight. Was worried about back focus but this adapter adds just the right spacing. Solid build, no light leaks at all.

Brian ★★★★★

The M66 to M54 adapter threads are cut cleanly and it mated with my flattener on the first try, no cross-threading at all. Backfocus stayed exactly where it should, so my M54 filter wheel and camera went on without me having to re-shim anything. Solid little piece of machining.

Robert H. ★★★★★

Screwed right onto the Esprit 100 flattener and mated my M54 filter wheel without any wobble or play. Threads are cut clean at M66/1.0 and M54/0.75, so it seats flush with no tilt in the corners.

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