Baader 1.25" T2 Adapter w/Microfocuser

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Baader 1.25" T2 Adapter w/Microfocuser

The 1.25-Inch T2 Eyepiece Adapter w/Microfocuser by Baader Planetarium:

A standard adapter if you want to attach 1.25-Inch accessories to an adapter or telescope with T2 male thread! This Baader adapter provides absolutely resize focusing for visual observation and astrophotography. Now you can correct the mirror shift of the SCT telescope! Simply coarse focus using the SCT focuser, the use the built in helical micro-focuser for fine tuning!

But that's not all, the Baader T2 adapter keeps your accessories snug and safe with three knurled screws that tighten a non-marring brass compression ring fitting.

Microfocusing has never been so easy or simple! Just turn the upper portion of the Baader T2 adapter. One complete revolution gives you an additional 4 mm of travel for perfect focus with all kinds of telescopes.


Baader 1.25-inch T2 Eyepiece Adapter w/Microfocuser Features:
  • Provides fine focusing capabilities for lunar and planetary subjects
  • Non-shifting additional focuser for SCT telescopes
  • Hefty, stable T2/ 1.25-inch adapter with three locking screws and compression ring
  • Telescope side: female T2 thread
  • Eyepiece/camera side: 1.25-inch receptacle with three knurled screws and brass compression ring
  • Optical length: 28 to 34 mm (Helical focusing system)
  • Exact focusing for all kinds of telescopes


OPT Product Number: BA-EYEHOLD-2



Focuser Or Mask Size1.25" Drawtube
Free ShippingYes
Warranty1 Year Warranty
Customer Reviews
4.5 Based on 4 Reviews
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Kevin W.
Canada Canada
Great Focuser

Good build is a helical focuser so no surprise that whatever is attached to it rotates, Using it to attach an asi224 to the Orion Multiuse Finderscope (with some additional T2 spacers) for guiding. Movement is smooth, so simply loosen the thumbscrews for the camera and rotate until the screws. Works like a charm

William R.
United States United States
Happy with Baader 1.25 T2 Adapter

The adapter met all expectations. Actually, I made two adapters out of acetyl round stock that worked pretty well. One problem I didn't anticipate was that the coefficient of expansion for acetyl was much greater than metal, so eyepiece was trapped by the acetyl when the weather got very cold. The Baader adapter has excellent features for focusing and also distributes the screw clamp pressure uniformly around the circumference of the eyepiece, etc.. I liked it so much I bought two of them.

It's a good product but....

The piece is well made and looks good. It is a good product. howeverI have to agree 100% with DesertSky on his review. Depending on what you are doing with this the rotation could cause you substantial problems. The other problem I encountered was the viscosity of the grease on the threads. I was hoping to use this for fine tuning the focus on a SCT on very high magnifications. It proved to be so stiff I might as well been adjusting the primary mirror. I did try to flush out whatever was in there and replace it with a very fine Teflon grease. Works better now.. I would recommend it with the for mentioned qualifiers.

Nicely made but be aware

When you focus this item, the 1.25" tube turns which is fine with an eyepiece but if you are using a camera you can't focus and maintain alignment of the chip.