BAADER WIDE-T-RING SONY E/NEX BAYONET WITH D52I/M48 TO T-2 AND S52

The Sony Alpha 7 cameras – especially the 7S and 7SII – are very interesting for astronomical purposes because of their high sensitivity, short backfocus light weight and very compact body dimensions. We produce a very short T-adapter for Sony E-Mount/NEX bayonet, which adds only 8.3 mm onto the 18 mm backfocus of the camera housing. This enables an adaptation to all backfocus-critical systems like HyperStar or fast Newtonians. All other T-adaptors with T-2-thread which are commercially available at the moment do vignette the light path. We have incorporated the well-tested system of our Protective EOS-T-Ring into the Sony-adaptor: Besides the T2-thread, the design also includes an M48-thread – and even bigger – the outer part of our ultrawide S52-clamping system. We will soon offer a 2″ nose-piece with S52-ring-clamp. This 2″-nose-piece does provide you with an unobstructed clear inner diameter of 46mm and eliminates vignetting with the Sony Alpha 7 cameras even with very fast optical systems. The Baader SONY-E-Mount/NEX bayonet T-Adaptor already got introduced in our last newsletter.

Please check out the GIF-Ani which explains how to refit from T-2 to M48 (center) – as well as the gain in clear aperture (left/right).

Comparison of clear aperture of the Sony E/NEX T-Ring with T-2/M48 inner thread

Sony E/NEX T-Ring Scope of supply: Changing of T-2/M48 inner thread

Comparison of clear aperture of the Sony E/NEX T-Ring with T-2/M48 inner thread

Specifications