The M48 to 2" photographic adapter allows you to connect all cameras and accessories with a female M48x0,75 thread to the Prima Luce Lab 50.8mm visual back.
On the telescope side it has a 48mm thread to allow you to screw any 50.8mm (2") diameter filter and has 44mm of free aperture, so cameras with large sensors won't suffer any vignetting.
|Connection (telescope side)
|Connection (camera side)
||M48 x 0.75 female|