Dark Clear Skies M54M to M42M Back Focus Spacer – 1.5mm Wide Field Imaging The Uranus-M Pro (IMX585) camera

The Uranus-M Pro (IMX585) camera

makes RT29 waterproof version no harm when meeting the rainy day outdoor

For 12nm MaxFR filters this means unlimited usability from f/1

allowing seamless attachment to tripods

For travel setups

Dark Clear Skies M54M to M42M Back Focus Spacer – 1.5mm Wide Field Imaging The Uranus-M Pro (IMX585) cameraThe Dark Clear Skies M54M to M42M Fine Back Focus Spacer (1. 5 mm) is a precision machined spacer designed for fine adjustment of back focus distance in astrophotography imaging trains. Purpose & Use Many telescope reducers and field flatteners require a precise back focus distance to deliver optimal star shapes and edge correction. Small spacing errors of even 12 mm can noticeably affect image quality, particularly with fast optical systems and