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2" Deluxe Eyepiece Clamp for SC-telescopes – with 2" Nosepiece
The Baader 2" Deluxe Eyepiece Clamp adds a fixed 60mm of optical length to your Schmidt-Cassegrain's light path, solving focus issues with accessories that require extra travel. This single component also holds 2-inch accessories with a bronze clamping ring and two clamping screws, and has two M48 filter holders for 2-inch filters.
60mm Optical Length for Focus Flexibility
Certain accessories, particularly binoviewers and some focal reducers, often require more back focus than a standard visual back provides. This clamp introduces a 60mm extension, pushing the focal plane outward to accommodate these demanding optical trains. This makes it a critical problem-solver for imagers and visual observers who cannot otherwise reach focus with their desired setup.
Two M48 Filter Holders
Baader equips this clamp with two M48 filter holders, so 2-inch filters can be mounted inside it.
A Secure 2-inch Upgrade for SC Telescopes
Designed as a robust upgrade for any Schmidt-Cassegrain, this deluxe clamp replaces the often-inadequate stock visual back. Its bronze clamping ring and two clamping screws hold 2-inch diagonals, eyepieces, and camera nosepieces securely. The included 2-inch nosepiece ensures it can mount directly to any standard 2-inch focuser or adapter.
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What is the purpose of the 60mm optical length on this Baader Clamp?
The 60mm of added length is designed to help achieve focus with accessories that require significant out-travel. This is common with many binoviewers, some off-axis guiders, and specific camera configurations that would otherwise not reach the focal plane on a standard Schmidt-Cassegrain telescope.
Will this Baader 2" Clamp work with my Celestron 8" SCT?
Yes. This clamp is designed to thread directly onto the standard 2-inch SCT rear cell threads found on most Celestron and Meade Schmidt-Cassegrain telescopes. It serves as a direct upgrade to the stock 1.25" visual back, allowing you to use 2-inch accessories securely.
Can this 60mm extension help me reach focus with a binoviewer on my Meade LX90?
It can be a key part of the solution. Binoviewers typically require significant in-focus travel, which SCTs accommodate by moving the primary mirror. However, adding this 60mm extension pushes the light path *outward*, which may be exactly what's needed when combined with the right Optical Corrector System (OCS) or Barlow lens designed for binoviewing.
What is the advantage of this Deluxe Eyepiece Clamp over a basic SCT visual back?
A basic visual back typically uses a single thumbscrew to hold an eyepiece, which can cause heavy accessories to tilt and can mar the barrel. This deluxe clamp uses a bronze clamping ring with two clamping screws to give heavy 2-inch eyepieces and camera setups a secure grip.
Can I use my 1.25" eyepieces with this 2" Baader Clamp?
Yes, you can use 1.25" eyepieces and accessories by inserting a standard 2" to 1.25" adapter into the clamp. The clamp will securely hold the adapter, allowing you to use your entire collection of eyepieces.
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| Product Type |
Eyepiece Clamp & Extension Tube |
| Telescope Interface |
2" nosepiece (as supplied) or 2" SCT thread |
| Accessory Interface |
2" Clamp |
| Optical Length |
60mm |
| Filter Holder |
Internal Dual 2" Filter Mount |
| Net weight (kg) |
0.19 |
| Screw Type |
2x M4 clamping screws |
| Compatible Brands |
UNC, Baader Planetarium, Celestron |
| Clamping System |
Screw clamps |
| Inner Diameter / Clear Aperture (mm) |
46 |
| Outer Diameter |
67 |
| T-2 Part # |
17A + 17C + 19 |
| Inner Connection (eyepiece/-camera-sided) |
ø 2" (50.8mm) |
| Outer Connection (eyepiece/-camera-sided) |
S65 |
| Inner Connection (lens sided) |
M48, 2"/SCT Thread (50.8mm), M58 |
| Outer Connection (lens sided) |
ø 2" (50.8mm), S65 |
| Adaptable to |
SC teleskopes C11 and C14 |
| Telescope-side connection |
2" SCT Thread Female |
| Camera-side connection |
2" Eyepiece Clamp |
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2" Deluxe Eyepiece Clamp for SC-telescopes
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Baader Planetarium Warranty
