OGMA 2in Zero Light Leak Filter Holder and M42 M48 M54 Adapter (v2)


  • Zero light leaks.
  • It's probably the most affordable solution for adding a 2'' filter to a dedicated astronomy camera.
  • Version 2 can also work as an adapter between threads M42, M48, and M54, commonly found in astronomy equipment. The version 1 couldn't be used as an adapter for M54 threads.


MaterialHigh strength aluminum
Filter diameter compatibility2 inch
Telescope side threadM48x0.75 (F)
Internal thread (for filter)M48x0.75 (F)
Camera side threadM42 x 0.75 (M)
Thread that connects both partsM54 x 0.75 (M & F)
External diameter59mm (v1 was 62mm)
Internal diameter (clear path)35mm
Width (for back focus calculations)21mm


OGMA warrants your product to be free from defects in materials and workmanship for one year. OGMA will repair or replace a product or part which, upon inspection by OGMA, is found to be defective during one year following the date that you receive the equipment.

For specific details, read OGMA's limited warranty.