The M48 to M54 male to male adapter is a popular accessory for connecting various items to an ASG Photon Cage.  The M54 side will fit into the ASG Photon Cage, while the M48 can accommodate any accessory, filter wheel, filter slider, OAG that size.

Product Description:

• Adapter for use with cameras with large sensors and accessories with M54x0.75 threads offered by companies like ZWO, Atik, Trutek, etc.
• Not for use with accessories that have an M54x1 thread
• Precision machined, black anodized aluminum

Specifications:

• Weight = 0.6oz
• Total length = 9.2mm (0.36")
• M48 Male thread specification = M48x0.75
• Length of M48 male thread (including unthreaded undercut) = 4mm (0.16")
• M54 Male thread specification = M54x0.75
• Length of M54 male thread (including unthreaded undercut) = 3mm (0.12")
• Optical length = 2.1mm (0.08")
• Clear aperture = 43.8mm (1.72")
• Maximum outside diameter = 69mm (2.72")