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Blue Fireball M48 Female to M54 Male Thread Adapter # M-05

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  • Adapter for use with cameras with large sensors and accessories with M54 threads offered by companies like ZWO, Atik, Trutek, etc.


  • M54x0.75 male thread on one side and M48x0.75 female thread all the way through
  • Precision machined, black anodized aluminum


  • Weight = 0.05oz
  • Total length = 5mm (0.20")
  • M48 Female thread specification = M48x0.75
  • Length of M48 female thread = 5mm (0.20")
  • M54 Male thread specification = M54x0.75
  • Length of M54 male thread (including unthreaded undercut) = 3mm (0.12")
  • Optical length = 2mm (0.08")
  • Clear aperture = 47.1mm (1.85")
  • Maximum outside diameter = 69mm (2.72")


Note: Occasionally, the product you receive might have a slightly different cosmetic appearance or labeling than what is shown. This can often change from batch to batch according to the whims of the manufacturer. However, you will always receive a brand new, original product as described above.

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Filed under: Eyepieces & Accessories