zwm54m-m54f-21mm

ZWO 21mm Extension Ring M54/M54 (M/F)

This adapter allows you to add 21mm to a ring with an M54 male thread, allowing you to achieve the desired backfocus.

It is particularly useful for replacing a ZWO filter wheel on a configuration with a ZWO ASI2600 camera.

The extension ring has an M54 female input thread and an M54 male output thread.

Built from aluminum, it features a black anodization for increased durability.