Astronomy Specialist



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This adapter combines a M54 male thread and M48 male thread, for an overall optical thickness of only 1.5 mm. The adapter has an internal anti reflection thread.

The adapter consists of two parts:

  • Adapter from M54 x 0.75 to female M48 thread
  • Reversing adapter which makes a male thread out of a female M48 thread.

Telescope connection

Male M54 x 0.75 and female M48 x 0.75

Camera connection

Male M48 x 0.75

Length of the M54 thread

5 mm

Length of the M48 thread 5.3 mm
Optical length
1.5 mm
Adapter overall length
13.3 mm
Internal anti-reflective thread


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