A superior, smooth focuser

The CNC-machined focuser that’s fitted to the ‘Deluxe’ Altair 72mm EDF is designed with astrophotographers in mind. It’s a solid rack and pinion focuser, with smooth movement provided by both coarse and fine focus knobs, while a tension-adjuster allows even the heaviest of cameras to be attached. This model has dual rotators that make image alignment easy, while maintaining precise focus without a worry of slippage. The addition of a finder shoe between the two rotators allows for a finderscope/guidescope to be installed, allowing it to be rotated independently of the telescope, camera and eyepiece. The barrel of the focuser is threaded, meaning Altair’s field flattener can screw directly onto the scope.

Once your camera is screwed onto the field flattener, there are no friction connections in the imaging setup, eliminating the risk of the camera slipping. With pre-drilled mounting holes, the focuser is designed to allow a motor drive to be installed, which is a nice touch.