The ZWO 16.5 mm Male M42 to Female M48 Adapter:

This T-2 M42-M48 adapter/ extender  has a 16 mm back focus. It can help you to get 55 mm back focus distance.

Side A: A male M42 connection on the camera side.

Side B: A female M48 connection on the telescope side.

Image shows adapter placement for use. The camera is not included, but may be purchased from OPT!

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• This T-2 adapter/ extender  has a 16 mm back focus.
• Side A: A male M42 connection on the camera side.
• Side B: A female M48 connection on the telescope side.