Moravian OAG mit M68x1 Thread for C3/G3 Mk II CMOS/CCD Cameras

Moravian OAG Mark II for C3/G3 cameras with M68x1 telescope mount

The off-axis guider for cameras with external Mark II filter wheel is equipped with an M68×1 thread on the telescope side in the distance 61.5 mm from the detector. On the camera side, mounting holes are provided for connection to Moravian C3/G3 cameras with external Mark II filter wheel.

For the guiding camera a 1.25" receptacle is available, via an adapter also cameras with CS-mount connection can be used. Important: If the working distance differs much more from 61.5 mm, it may no longer be possible to focus the guiding camera!

The mirror used to deflect light to guiding camera has 10 × 7 mm front cross-section (mirror dimensions are 10 × 10 mm, but the mirror is angled at 45 degrees). This is enough for guiding cameras with very large 2/3" format detectors without any significant vignetting (smallest detectors used in G0/G1 guiders is of 1/3" format, but numerous guiding cameras use 1/4" or even smaller chips).

Like all Mark II adapters, this OAG includes tip-tilt collimation screws. These adjustments screws allow you to collimate the sensor plane to the flattened image field.