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M54-M48-2 adapter is independently developed by ZWO and mainly used for connecting to 2”EFW and M54 filter drawer.

The thickness of this adapter is 2mm.

M54-M48-2 (1)

The edge is knurled to increase the friction so that the installation and disassembly will be much easier.

M54-M48-2 (2)M54-M48-2 (3)

The best solution of 55mm back focus length

best solution-1best solution-2

Click here to get the detailed connection guide: