These adapters will change eyepieces with little eyeguards to bigger eyeguards, so DIOPTRX™ or Smart Phone adapter can be installed and used.

Includes Brass clamp ring, filter threads and captive screw. Accepts PTR-1250

The TeleVue Extension Tube - X2C-0008 provides an additional 2" of focuser travel length which can sometimes be necessary when doing photography through many scopes - particularly when the 2" diagonal is removed.

An essential tool for manual guiding, the GA-4 adapter projects an illuminated reticule of 6 concentric rings onto any 1.25" eyepiece of your choice. The built in 3X Barlow ensures you can use a lower powered eyepiece that has plenty of eye-relief to keep guiding as comfortable as possible. This adapter also allows you to move the rings without having to move the eyepiece making the centering of a guide-star as easy as possible. Indispensable is the word most frequently used when manual guiding is spoken of.

Use this Eyepiece Adapter to convert 42mm Thread to 31.7mm; ; 55mm long light path; Weight 1.6 oz.

A premium quality adjustable three-part T/1.25" camera adaptor used for prime-focus and eyepiece-projection astrophotography with SCTs and refractors.

Want to connect your 2" eyepiece but have a T2 threading for a 1.25" sized eyepiece, the Lunt T2 adapter eypiece tube is the perfect solution. Take any eyepiece you have with a 2" barrel size and use the Lunt adapter to make it work!

2" to 1.25" Twist-Lock Eyepiece Adapter

This 1.25" T-adapter and T-Ring set drops into telescope eyepiece holders and couples your Canon EOS brand 35mm camera for photography through a telescope or spotting scope using a 35mm camera.

Baader Hyperion 2" Finetuning Stopring with Brass Clamping  HYP-STOP  Cat #2958027

The wait is over.  Baader Planetarium has developed the big brother to their acclaimed 1¼” Clicklock clamp.

Hyperion T-Adapter for prior models of Clickstop Zoom (Mk I and MkII Zooms)  Also adapts dioptrix astigmatism correctors to the Zoom.

The Baader Hyperion Digital T-Adapter permits direct coupling of any T-threaded camera or accessory to the M43 thread of the Hyperion Eyepieces.

The TeleVue photo/visual adapter for the BIG Paracorr Type-2 Focuser accessory. With the addition of the VISA adapter, the tunable top can now be used and allows the BIG Paracorr to be used with the TeleVue Imaging system accesories to be used in CCD/DSLR astrophotography.

Serving as an intermediate accessory between the TeleVue 2" Paracorr and VISA adapter to allow visual use of the BIG Paracorr Type-2 Focuser Accessory.

Includes Brass clamp ring and captive screw. No filter threads. Accepts PIR-2200

Includes 1 1/4" adapter, brass clamp rings, filter threads Accepts PTR-2200

Reduces focuser travel with 55 Plossl. Includes filter threads