Visual Backs & Eyepiece Adapters
Visual adapters connect eyepieces, diagonals and binoviewers to the telescope, and hold them centred and secure. A good clamp makes a real difference: a heavy 2-inch eyepiece held by a single thumb screw can tilt, slip or even fall out when the telescope points high. Compression rings and twist-lock clamps grip the barrel evenly instead.
We carry visual backs for SCTs and robotic focusers, 1.25-inch and 2-inch eyepiece holders, Baader ClickLock clamps, stop rings, nosepiece extensions, Tele Vue HiHat adapters, Howie Glatter Parallizers and specialist adapters for zoom eyepieces and binoviewers.
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Baader ClickLock Adapter - 1.25"/2"
Adapts 2" focusers and diagonals to accept 1.25" accessories ClickLock cam-lever mechanism for secure, rapid clamping Thumbscrew-free design preve...
View full detailsBaader ClickLock Eyepiece Clamp - 1.25"/T-2
5.0 / 5.0
1 Review
Clamps any 1.25" eyepiece or accessory without clamping screws Replaces thumbscrews with a 20° twist-lock action Telescope-side M42x0.75 (T-2) fem...
View full detailsHowie Glatter 2.0" to 1.25" Eyepiece Centering Adapter
Patented parallel alignment system Adapts 2" focusers to 1.25" accessories Zero in-focus loss for maximum compatibility Threaded for 48 mm (2") fi...
View full detailsBaader Focusing Eyepiece Holder - 1.25"/T-2
Adds precise helical focusing to any T-2 thread Accepts standard 1.25" eyepieces and accessories Three clamping screws for fine centering, plus a ...
View full detailsBaader Ultrashort Clamp - 1.25"/T-2
Connects 1.25" accessories to T-2 threads Ultrashort design minimizes optical path length Ideal for complex imaging trains with limited back focus...
View full detailsWilliam Optics 2"-1.25" RotoLock Visual Back Adapter
Converts 2" focusers to a 1.25" holder Innovative RotoLock self-centering mechanism Dual input: 2" push-in barrel and female M48 threads Adds 38 m...
View full detailsCelestron SCT to 2" Adapter
Adapts standard SCT rear cell threads to accept 2" accessories Threaded connection provides a secure, flex-free optical train Brass compression ri...
View full detailsPrimaLuceLab 2" Visual Back for ESATTO 2"
Connects 2" accessories to ESATTO 2" and ARCO 2" M56 female thread for direct attachment Three locking screws for secure, centered grip Internal b...
View full detailsBaader Hyperion 2" Finetuning Stopring w/Brass Clampring
Makes 2-inch Baader Hyperion eyepieces parfocal Sets a precise, repeatable focus position for each eyepiece Integrated brass clamp ring prevents s...
View full detailsBaader Hyperion Finetuning-Ring - 28mm M48/M48
28mm Optical Extension M48 Male and Female Threads Modifies Eyepiece Focal Length Compatible with Baader Hyperion Eyepieces Maintains Optical Alig...
View full detailsBaader Q-Turret Quad Eyepiece Revolver - 1.25"
Holds four 1.25" eyepieces for rapid switching Lightweight design is compatible with most focusers Metal threads for secure connections Accepts pl...
View full detailsSky-Watcher 2" Eyepiece Holder for Dobsonians - 57mm
Replacement 2" Eyepiece Holder Designed for Sky-Watcher Dobsonian Telescopes Fits Focuser Openings of 57 mm Securely Holds 2" Eyepieces and Access...
View full detailsPrimaLuceLab 2" Visual Back for ESATTO 3"
Adapts ESATTO 3" Focuser to Use 2" Accessories Internal Brass Compression Ring Prevents Scratches Multiple Locking Screws for a Secure, Centered F...
View full detailsBaader Stop-Ring -1.25"
Sets a repeatable, precise focus position for any 1.25" accessory Ideal for parfocalizing a set of eyepieces Reduces time spent refocusing when sw...
View full detailsBaader Focusing Eyepiece Holder - 1.25"/M36.4(M)
5.0 / 5.0
1 Review
Adds precise focusing to 1.25" eyepieces or accessories Connects to female M36.4 Vixen-style threads For Vixen, Takahashi and Lichtenknecker focus...
View full detailsBaader Hyperion / Morpheus Extension - M43
Customizes eyecup height for optimal eye placement Provides a secure clamping surface for smartphone adapters Stackable design for eyepiece projec...
View full detailsBaader Hyperion Finetuning-Ring - 14mm M48/M48
14mm Extension Length M48 Male and Female Threads Compatible with Baader Hyperion Modular Eyepieces Increases Eyepiece Magnification Maintains Opt...
View full detailsStarlight Instruments Eyepiece Adapter for Celestron/Meade 6.3 Focal Reducer
Attaches a Celestron/Meade f/6.3 Focal Reducer to any 2.0" opening Enables wide-field visual observation with SCTs Precision-machined for a secure...
View full detailsHowie Glatter 2.0" Parallizer Eyepiece Centering Adapter
Holds 2" accessories Known to fit any 2" Feather Touch SCT adapter (sold separately) Patented Parallizer alignment keeps the accessory axis parall...
View full detailsDavid Astro SCT to 2" Visual Back
Threads onto the rear cell of an SCT Holds 2" diagonals and accessories Opens the way to 2" low-power eyepieces Description FAQ Specifications ...
View full detailsBaader Budget Eyepiece Clamp -1.25"/T-2
Adapts T-2 (M42x0.75) Threads to a 1.25" Eyepiece Holder Provides a Standard 1.25" Receptacle for Eyepieces and Accessories Part of the Baader Ast...
View full detailsWilliam Optics 1.25" RotoLock Visual Back Adapter - SCT
Securely holds 1.25" eyepieces and accessories RotoLock system provides self-centering, even grip Attaches to standard SCT rear threads (M50.8 fem...
View full detailsWilliam Optics 2" RotoLock Adapter - SCT
Designed for Schmidt-Cassegrain Telescopes (SCT) Features a secure RotoLock mechanism for 2" accessories Description The Willi...
View full detailsStarizona Virtual View 2" Rotating Visual Back for SCTs
Installs a 2-inch rotating visual back on your SCT Allows for smooth, one-handed eyepiece and camera rotation Internal tension ring holds accessor...
View full detailsCommon Uses
- SCT visual backs: Connect a 1.25-inch or 2-inch diagonal to an SCT's rear thread.
- 2-inch to 1.25-inch adapters: Use smaller eyepieces in a 2-inch focuser or diagonal. Low-profile versions keep focus travel short.
- Clamping holders: Twist-lock and compression ring holders keep eyepieces centred and protect barrels from scratches.
- Extensions: Add travel when an eyepiece or diagonal cannot reach focus.
Visual Adapters: Frequently Asked Questions
Why does my eyepiece not reach focus?
Each diagonal and adapter adds or removes light path. An extension or a lower-profile adapter usually fixes it. Tell us the parts in your setup.
Is a ClickLock clamp worth it?
For heavy 2-inch eyepieces, cameras and binoviewers, yes. It centres the barrel and holds it securely.
Need to connect something to your telescope?
Tell us the two parts and we will find the right adapter.