M54 VARIABLE EXTENSION 15 - 18mm flattener The ASI533MC PRO uses a

The ASI533MC PRO uses a zero amp glow circuitry which eliminates the problem

The new 2024 AM5N version features improved payload capacity without counterweights (up to 15 kg)

Optical thickness 10 mm Compatible telescopes

70 mm (minor axis)

Low profile 10mm M54 Canon EF lens adapter for QHY cameras

M54 VARIABLE EXTENSION 15 - 18mm flattener The ASI533MC PRO uses aThis variable length adapter consists of a male M54 x 0. 75 thread on one end and a female M54 x 0. 75 thread on the other. Optical thickness of the adapter can be adjusted between 15 18mm. This is very useful for connecting accessories such as filter drawers or filter wheels to correctors which require a very specific backfocus distance. Specifications Connection side A Female M54 x 0. 75 Connection side B Male M54 x 0. 75 Optical length 15 18 mm SKU