Adapter Plates for Compact Cameras

Connect your SBIG filter wheel or off-axis guider to your telescope focuser’s draw tube or focal reducer/field flattener with these adapters.  These adapters are designed to work with the FW8S-Aluma, the StarChaser SC-2 off-axis guide camera, and the OAG-8300 off-axis guider.  Also work with older STT and self-guided Aluma wheels.  Interface options include:

T-Thread M42 x 0.75 – compatible with many lenses, telescopes, and other optics that use the standard T-thread interface.  Also known as a T-2 thread.  Compatible with compatible with the 2″ Nosepiece with T-thread. Note that this plate may vignette when used with off-axis guide cameras.

M48 x 0.75 thread – the same as found on many DSLR and Mirrorless digital camera adapter rings. (Sometimes erroneously called a “Wide-T” ring.)

SCT Thread 2″ x 24 – compatible with many 8″ through 11″ Schmidt-Cassegrain telescopes (SCT).  Also known as the small SCT thread.

STL Thread 2.156″ x 24 – compatible with STL-style adapters and draw tubes, and is compatible with the 2″ Nosepiece with STL thread.  This combination is recommended when using off-axis guide cameras as it provide a larger unvignetted field.