Home/Accessories/Adapters & Clamps/Eyepiece Clamps / Nosepieces/M48 Extension Tube with 2" Safety-Kerf Nosepiece – 40 mm

Modern cameras are usually characterised by extremely short optical heights, in order to be able to be mounted on various telescope constructions. The old T-2 standard with 5 mm thread depth is a hindrance to this. To take care of this new development, all new Baader T-2 and M48 parts are delivered with the new 3 mm standard.

M48 Extension Tube with 2" Safety-Kerf Nosepiece – 40 mm

Product Details

SKU
2958640
EAN Code
4047825042866
Manufacturer
Baader Planetarium

Optical & Usage Specifications

Adapters Family
M48 System
Optical length (mm)
40 (or 4)
Type of Adapter
Nosepiece
Extension
Usage
Adjusting the distances of accessories with M48 thread, M48 / 2" Nosepiece

Ports & Compatibility

Clamping System
no clamp
Compatible Brands
Baader Planetarium
Inner Connection (lens sided)
ø 2" (50.8mm)
M48
Outer Connection (eyepiece/-camera-sided)
M48

Dimensions & Weight

Inner Diameter / Clear Aperture (mm)
45 mm
Net weight (kg)
0.05
Outer Diameter
53 mm

I've just upgraded my eyepieces/diagonal to 2" components and am finding it difficult get a focused image. Through trial and error it seems that if I just barely insert both the eyepiece and the diagonal nosepiece into their respective clicklocks then I'm able to focus the image; however this does not feel like the eyepieces are secure. This leads me to believe an extension tube may be required; is this component compatible with the Baader 2" Clicklock diagonal, and would it provide an extension versus the standard nosepiece that comes with the diagonal? It there a different piece I could install to extend the eyepiece side of the optical train instead of between the SCT and the diagonal? Thanks! My setup, for reference: Celestron Nexstar Evolution 8" Baader 2" ClickLock Eyepiece Clamp for 2" SCT and Large SCT - CLSC-2 Baader 2" Clicklock Diagonal Baader 2" Morpheus Eye pieces

Matt Sadler / October 12, 20221 Answer

It is strange that you can't reach focus with the eyepieces, as standard Schmidt-Cassegrains have got a very wide range in which they can focus. You can screw this extension into the nose piece of the star diagonal, but then you may have trouble pointing the telescope into the zenith, as it may hit the base of the mount. If you only have problems with the Morpheus when you use them as 2"-eyepieces, and not with other 2" or 1.25" eypieces, we would recommend a 2"/1.25"-reducer instead, like Baader 2" to 1¼" ClickLock Reducer # 2956214 or Baader Reducer 2"/ 1 ¼" (T-2 part #15) # 2408190. When you use them as 1.25"-eyepieces, the Morpheus have got a similar focus position as most other eyepieces; when you use the 2"-slevve, they can move farther into the eyepiece holder, so that the focus must be adjust much more by moving the eyepiece outwards.
Baader Web Team / October 31, 2022
1
0

Service & Company

Service & Company

M48 Extension Tube with 2" Safety-Kerf Nosepiece – 40 mm

M48 Extension Tube with 2" Safety-Kerf Nosepiece – 40 mm

Product Details

Optical & Usage Specifications

Ports & Compatibility

Dimensions & Weight

COMPANY

BLOG POSTS

ORDERS

OTHER SITES

GET IN TOUCH