Astrodymium Colour Coded Fine Tuning Spacer Rings for M54 Threads (9x)
  Zoom

Astrodymium Colour Coded Fine Tuning Spacer Rings for M54 Threads (9x)

£17.00
  (1 Review)
✓ 2 year warranty

:  

3x in stock shipped 1-2 working days

About this product

Model:  astdym_m54_cc_sr
Part Number:  M54-CC-SR

Astrodymium Colour Coded Fine Tuning Spacer Rings for M54 Threads (9x)

These rings slip over the thread of an adapter/extension tube, and are primarily used for fine tuning backfocus when doing astrophotography, but they can be used for other purposes as well.

Each set of M54 contains 9 individual spacer rings, with 3 different thicknesses. 3 of each thickness is included: 0.4/0.6/1.0 mm.

Each ring is also colour coded for easy identification.

  • Red - 0.4mm
  • Blue - 0.6mm
  • Black - 1.0mm

Each ring has an inner diameter that is 0.5mm larger than the specified size, for good clearance on the threads - They will not get stuck and are easy to insert or remove. 

This item is made out of ABS plastic and can handle up to 85ºC (185ºF) temperatures without deformation.

Customer reviews

Average Rating (1 Review):  
Write a Review and share your opinions!

Rating (max 5):  
Expensive plastic!
08 January 2024  | 

These are necessary for the correct back focus in imaging. Only drawback was the price, 17 for these was crazy! Thanks to FLO for usual great service provided.

FAQ

Please fill in the form below to ask a question.

*
*
*
*
Please add the two numbers