M54 VARIABLE EXTENSION 15 - 18mm flattener Low profile 10mm M54 Canon

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

it is used in order to compensate the focus position shifting caused by changes in temperature

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30A063 (orange)

M54 VARIABLE EXTENSION 15 - 18mm flattener Low profile 10mm M54 CanonThis 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