M68M to M42M Adapter – 1.4mm Back Focus | Dark Clear Skies m68 to m63 AC Version: Rackless (Crayford-style) focuser

AC Version: Rackless (Crayford-style) focuser designed for smooth manual focusing with lightweight guide cameras

Perfectly designed for 36mm filter wheels from major brands including ZWO

so that the camera can quickly adjust the horizontal scale

Ideal for photography

M68M to M42M Adapter – 1.4mm Back Focus | Dark Clear Skies m68 to m63 AC Version: Rackless (Crayford-style) focuserM68M to M42M Adapter 1. 4mm Back Focus This precision machined M68M to M42M adapter is designed for astrophotography setups that require extremely accurate back focus spacing. With an ultra short optical length of just 1. 4mm, its ideal for fine tuning imaging trains involving reducers, flatteners, filter wheels, off axis guiders, and cameras. Finished in matte black to help minimise internal reflections, this adapter provides a clean conversion from