Astro-Physics 6x7 Pentax Camera Adapter for Use with Telecompressor.
Thread this adapter into place while using the ring shown on the right to lock your camera into position after you have framed your image. This allows you to rotate the camera to achieve your desired composition.
Telecompressor - This adapter allows you to use the Telecompressor (27TVPH) with your Pentax 6x7 camera. Your image circle will be approximately 2" fully illuminated.
To couple scopes that don'''t need a field flattener to the Pentax 6x7 - Thread directly onto your 2.7" focuser to use a Pentax 6x7 without a field flattener. This is appropriate for older Astro-Physics 6"f9 and 6"f12 scopes, however, a field flattener is needed for the shorter focal lengths to obtain the best results.