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Baader Wide-T-Ring Sony E/NEX Bayonet with D52i/M48 to T-2 und S52

Baader Wide-T-Ring Sony E/NEX Bayonet with D52i/M48 to T-2 und S52

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Application Application Sony E/NEX T-Ring Scope of Supply Application Sony E/NEX T-Ring Scope of Supply Sony E/NEX T-Ring Scope of Supply Application Application Image: Sony E/NEX T-Ring with T-2 inner thread Application Application Image: Sony E/NEX T-Ring with T-2 inner thread Application Application Image: Sony E/NEX T-Ring with M48 inner thread Application Image: Sony E/NEX T-Ring with M48 inner thread Combination image: Sony E/NEX T-Ring with 2"/S52 barrel Application Image: Sony E/NEX T-Ring with 2"/S52 barrel and T-2 inner thread Application Image: Sony E/NEX T-Ring with 2"/S52 barrel and T-2 inner thread Application Image: Sony E/NEX T-Ring with 2"/S52 barrel and M48 inner thread Application Image: Sony E/NEX T-Ring with 2"/S52 barrel and M48 inner thread Application

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Baader Wide-T-Ring Sony E/NEX Bayonet with D52i/M48 to T-2 und S52

# 2408317

€ 39.00 Price excl. German VAT tax (19%): € 32.77

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Baader T-Ring to connect Sony E/NEX DSLR cameras on the Astro T-2 system
All Baader Wide-T-rings have an S52 dovetail in addition to the inserted T-2 ring. This allows the T-ring to be modified to an M48 female thread using the S52 / M48 adapter #2958552, or to use the S52 barrel #2958551 without the T-2 reduction. With the S52 / M68 adapter # 2458252, the Wide-T-Ring can be directly attached to an M68 male thread to securely fasten your camera to the widest possible aperture.
All Baader Wide T-rings can be directly adapted to an UFC (Universal Filter Changer) with the optional Baader UFC S52 dovetail camera-adapter (#2459119), in order to change different filter sizes directly in front of the camera sensor.
With the ultra-short Backfocus of only 26.3mm (18mm camera, 8.3mm T-2 bayonet ring) many adaptations in combination with reducers / filter wheels are now possible for the first time. Furthermore, the illumination of the camera chips improved significantly, mainly because of the larger clear aperture.
Camera-sided connection: Sony E / NEX bayonet
Telescope-sided connection: S52 dovetail clamp incl. S52/M48i and M48a/T-2i internal thread with 0.75mm pitch

Product Questions

Hi there - I'm a little confused - in the description at the top it says that from the front support surface to the image plane of the camera, this represents 55mm. However, this ring is only meant to add 8.3mm to the 18mm backfocus of e-mount cameras. That would give a total backfocus of 26.3mm...so my question is if I want to connect my e-mount camera to the back of a field flattener which requires 55mm backfocus, is this adapter enough, or do I need to add approx 28.7mm of spacers? Thank you and sorry for the long question.

Question by: Eshan on Mar 5, 2018 2:55:00 PM | 1 Answer(s)

If I use this on my Sony A7iii and connect directly to a nexstar 8SE with a focal reducer, what would be the correct back focus?

Question by: Jeffrey on Sep 30, 2021 12:04:00 AM | 1 Answer(s)

I see a hex key in the picture. Does this mean the camera can be rotated then locked axially, once the imaging train is screwed together.

-11

Question by: Chris on Oct 1, 2019 6:49:00 PM | 1 Answer(s)

I bought this ring for my Sony A7s. I cannot take the T2 from M48 ring, could you help me ?

-20

Question by: matthieu on Feb 9, 2017 3:14:00 PM | 1 Answer(s)

Description

Details

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-adapters with T-2-thread which are commercially available at the moment do vignett the light path. We have encorporated the well-tested system of our Protective EOS-T-Ring into the Sony-adapter: 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-Adapter 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

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Specifications

Additional Information

Manufacturer	Baader Planetarium
SKU (#)	2408317
Net weight (kg)	0.04
Optical length (mm)	8,3
Usage	zum Anschluss von (D)SLR Kameras an das Astro T-2 Gewinde
Camera Adaptable	Sony E/NEX
Inner Diameter / Clear Aperture (mm)	41
Outer Diameter	60
Inner Connection (lens sided)	S52, T-2 (M42 x 0,75), M48
Outer Connection (eyepiece/-camera-sided)	Bayonet
Compatible Brands	Astro T-2, Baader Planetarium
Type of Adapter	Camera Adapter

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