2" Visual Back with M54 male and M48 female threads for Flatteners, Reducers, Coma Correctors

This is a 2" visual back that is compatible with a wide range of flatteners, coma correctors, reducers, extenders etc that come either with a male M48x0.75 thread (many Lacerta, Baader, Synta and Celestron products) or a female M54x0.75 thread (Takahashi and other Japanese brands) on the camera side.

It is also compatible with the Lacerta 2" Herschel Wedge.

The light path is 55mm when it is screwed into the M48x0.75 thread and 50mm when it is adapted to the M54x0.75 (Takahashi or Lacerta 2" Herschel prism).
 

POSSIBLE USES

• GPU coma corrector through M48 on the camera side
• Retrofit the Takahashi Epsilon 130/160/180 with a 2 inch eyepiece connection
• Lacerta 2 "Herschel prism through M54 on the housing (at the same time the ND3 filter is screwed into the M48 internal thread)
• Many Takahashi flatteners / reducers through the M54x0.75 on the camera side (at the same time a 2 "filter can also be screwed into the M48 thread)
• Synta ESPRIT flattener / reducer through the M48 on the camera
• the newer Baader and Celestron correctors with M48

SPECIFICATIONS

Optical length: 50mm/55mm (see above description)
Length of M48 thread: appr 7.5-8.0mm
Length of M54 thread (M54x0.75): appr 5mm
Overall external diameter: 59mm
Overall lenght: 55mm