SBIG STT/STXL Remote Guide Head

Features

Remote Guide Head for the STT and STXL Series Cameras

You can add a second head to your STT or STXL camera and guide using a separate guide scope, camera lens or OAG.  The Remote Guide Head (RGH) contains the same KAI-0340 monochrome CCD that is used in the self-guiding filter wheels for the STT and STXL series cameras.  It is also the same CCD used in the ST-i guider and planetary camera.  The RGH plugs into the Remote Guide Head Port on the camera body and receives its power and signals from the camera.  Although the RGH looks very much like the ST-i guider, it is not the same.  The RGH can only be used when connected to the RGH port on an STT or STXL camera.  Also, unlike the ST-i, the RGH can control an Adaptive Optics accessory.

Both the STT and STXL Series cameras have two filter wheel versions, a standard filter wheel and a self-guiding filter wheel.  The standard filter wheels are specifically designed to allow enough backfocus when attached to the camera body that Nikon and Canon EOS camera lenses may be used.  However, the extra thickness required by built-in guider of the self-guiding versions of these filter wheels will not allow the use of 35mm camera lenses.  A standard filter wheel cover can easily be swapped for the self-guiding cover when imaging with a camera lens, and in this case, the RGH can be used in place of the built-in guider of the self-guiding filter wheel cover.  Guiding images taken through a camera lens are less demanding than imaging at longer focal lengths, so using a separate guide scope in this configuration is generally fine. 

The RGH comes with a 6 foot (~2m) HDMI cable.  All ST-i guider accessories such as the c-mount and other camera lens adapters will also fit the RGH.