M54 VARIABLE EXTENSION 15 - 18mm ZWO but without losing any of

but without losing any of the pre-set alignment

Optical Design Refractor Diameter/Aperture 82mm Focal Length 530mm F/Ratio f/6

25″ adaptor Telescope tube length 923mm – 1390mm Telescope height 1620mm Base diameter 646mm

Simply use the large levers to engage or disengage the axis of choice

parfocal with other saxon Cielo HD eyepieces (require little to no focusing between eyepieces)

M54 VARIABLE EXTENSION 15 - 18mm ZWO but without losing any ofThis 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.