Astro-Physics ADA2767 2.7" to 6x7 Outer Bayonet Adapter
Astro-Physics 2.7" to 6x7 Outer Bayonet Adapter
This adapter greatly increases the versatility and functionality of your imaging system. It was designed to couple larger format CCD cameras like the SBIG STL series and full frame DSLR’s (such as Canon and Nikon) to focusers and accessories that have the female Astro-Physics 2.7" thread. These include all Astro-Physics focusers, any other focuser that has an adapter with our 2.7" female thread, large Celestron and Meade SCTs with our ADASCTLC27 and ADASCTLM27 adapters or the Photo-Visual Telecompressor (27TVPH). These are the advantages:
Allows the Photo-Visual Telecompressor (27TVPH) to be used with a wide variety of digital and CCD cameras.
Maintains the full 2.7" unobstructed light path and does not vignette. This is particularly useful when combined with the Telecompressor (27TVPH) for connection to cameras.
Allows rotation for easy framing of your image with hard-coupled configurations to DSLR and CCD cameras.
Allows the use of the Astro-Physics adapters that were designed for the Pentax 6x7 bayonet system (used with our Field Flatteners) to be used without an Astro-Physics Field Flattener. Important Note: This adapter will no longer fit the outer bayonet of the original Pentax 6x7 camera (consider the ADA67P instead).
This adapter has a net spacing distance of 0.20" (5.08 mm).
The ADA2767 is black anodized, and the inner 2.7" clear opening has knife edge baffles that are painted flat black. The adapter is approximately 0.85" in overall length, but adds just 0.20" to the light path.
There are a full range of accessories and adapters that interface with the ADA2767. These are shown and described on this exploded diagram: 2.7" to 6x7 Outer Bayonet Adapter in PDF format. We suggest that you review this diagram carefully when determining how to best utilize this adapter for your particular imaging needs.
We at 365Astronomy keep some of the adapters in stock, but please contact us if you cannot find the correct adapter for your application. Alternatively, custom made adapter can be ordered from Precise Parts whom we partnered up.
Below image shows ADASCTLC27 adapter with 27TVPH Photo-Visual Telecompressor plus the ADA2767 6x7 Bayonet Adapter screwed into the top of the telecompressor. Screw it onto the 3.25" back of a large Celestron SCT, then we only need the appropriate length extension and a camera adapter to attach a camera. (Only for demonstration purposes.)