N/A 2
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12 set of spacer rings for various sizes in black/white - these rings slip over the thread and are used for fine tuning backfocus. Currently produced sizes are specified below, but custom spacers and thicknesses can be made upon request for a small extra fee.
General:
Details:
General:
- M42
- M48
- M54
- M56
- M68
- M43
- M72
- M92
- M63
- M82
- 2.7" (M70)
Details:
- Each set comes with 12 individual spacer rings, with 4 different thicknesses. 3 of each are included: 0.4/0.6/0.8/1.0 mm.
- The width of the rings is 3.95 mm, with a 0.5 mm larger inner diameter for good clearance.
Funding Member
Sponsors
- GetLeadsFast, LLC
- T.E.C
- ADM
- AstroMart LLC
- Rouz Astro
- RemoteSkies.net
- FocusKnobs
- Denkmeier Optical
- astronomy-shoppe
- jp Astrocraft, LLC
- Pier-Tech Inc.
- Desert Sky Astro Products
- SellTelescopes.com
- Matsumoto Company
- OMI OPTICS USA LLC
- APM-Telescopes
- Astromart Customer Service
- Anacortes Telescope
View all sponsors