Skip to content

Language

Country

Baader ClickLock Eyepiece Clamps - from T-2 to 4.1"

SKU BAA-2956215
Original price CA$116.00 - Original price CA$271.00
Original price
CA$139.00
CA$116.00 - CA$271.00
Current price CA$139.00
Price Match Policy!
  • Replaces standard thumbscrew holders with a secure twist-lock mechanism
  • Ensures perfect axial alignment for eyepieces and cameras
  • Provides a solid, non-marring grip on 1.25" and 2" barrels
  • Heavy-duty design securely holds heavy accessories without slippage
  • Available in dozens of thread options from T-2 (M42x0.75) to 4.1"
Backordered
Availability Info
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty
  • Baader ClickLock Eyepiece Clamps - from T-2 to 4.1"

    The Baader ClickLock Eyepiece Clamps replace inadequate thumbscrew holders with a precision-engineered locking system, available in formats from the M42x0.75 T-2 thread to massive 4.1" UNF threads for Feather Touch focusers. This system secures heavy 2" eyepieces and imaging cameras with a simple, gentle twist of the outer ring, locking them onto the optical axis with perfect centering. With models available for nearly every major telescope and focuser—including adapters for 2" SCT threads and M68 threads for Zeiss focusers—the ClickLock is a definitive upgrade for visual observers and imagers seeking mechanical perfection.

    The 2-Inch ClickLock Mechanism: A Gentle Twist for Perfect Centering

    The core of the ClickLock system is its innovative cam-lever mechanism. A light twist of the rubberized outer ring activates a three-point clamp that grips the eyepiece barrel evenly around its circumference. This concentric pressure distribution guarantees your accessory is perfectly centered and held rigidly, eliminating the possibility of tilt or wobble, even with heavy diagonals, cameras, or ultra-widefield eyepieces.

    • Non-Marring Grip: Unlike the focused pressure of a thumbscrew that can scratch and dent your eyepiece barrels, the ClickLock's distributed force holds accessories securely without causing cosmetic damage.
    • Tactile Lock Confirmation: The mechanism provides clear acoustic and tactile feedback when locked, so you can be confident your equipment is secure, even when operating in complete darkness or with gloves on.
    • Heavy Payload Security: The robust internal components are designed to hold significant weight. You can trust the ClickLock to support a full imaging train or a heavy 2" eyepiece and Barlow combination without slipping.

    Universal Compatibility: Models for T-2, SCT, and Focusers up to 4.1"

    Baader offers an extensive range of ClickLock clamps to integrate with virtually any amateur telescope setup. Whether you are upgrading a standard SCT, a high-end refractor, or a custom-built Newtonian, there is a ClickLock model designed for a direct fit. This allows you to standardize your eyepiece holders across different instruments for a consistent, reliable user experience.

    The system includes direct-thread adapters for focusers from Astro-Physics, Takahashi, Feather Touch (2.5", 3.0", and 3.5"), Vixen, Zeiss, and Explore Scientific. Specific models are available for the common 2" and 3.3" SCT threads found on Celestron and Meade telescopes, as well as M56 and S57 ring-dovetails for Sky-Watcher and Celestron Newtonians, and the universal M42x0.75 T-2 thread for custom imaging trains.

    ClickLock vs. Thumbscrews: Eliminating Tilt with 2-Inch Accessories

    A standard thumbscrew holder is the weakest link in most optical trains. By applying pressure from a single point, it inherently pushes the eyepiece or camera barrel off-axis, introducing tilt. This misalignment degrades optical corrections, harms edge-of-field sharpness, and can make precise collimation impossible. For imaging, this tilt is a primary cause of elongated stars in the corners of the frame.

    The Baader ClickLock system solves this problem completely. Its concentric clamping action ensures the accessory's barrel is held perfectly parallel to the focuser drawtube. This maintains the integrity of your telescope's optical axis from the objective all the way to the sensor or your eye, preserving the full sharpness and contrast your telescope is designed to deliver.

  • Which Baader ClickLock clamp do I need for my Celestron 8" SCT?

    For most Celestron 5", 6", and 8" Schmidt-Cassegrain and EdgeHD telescopes, you will need the Baader ClickLock model with the standard 2" SCT (Female) Thread. This clamp screws directly onto the rear cell of the telescope in place of the standard visual back.

    How does the Baader ClickLock prevent my eyepieces from getting scratched?

    A traditional thumbscrew applies a high amount of pressure to a very small point, which can easily mar the soft aluminum of an eyepiece barrel. The Baader ClickLock distributes the clamping force evenly around the entire circumference of the barrel. This firm but gentle grip holds the accessory securely without creating the dents and scratches common with thumbscrew designs.

    Can I use the Baader ClickLock clamp for astrophotography?

    Absolutely. The Baader ClickLock is highly recommended for astrophotography. Its primary advantage is ensuring perfect axial alignment, which eliminates sensor tilt—a major cause of poor star shapes in the corners of an image. The strong, reliable grip also prevents any movement or sagging within the imaging train, even with heavier cameras and filter wheels.

    Will a Baader ClickLock clamp solve imaging train tilt with my Takahashi refractor?

    A Baader ClickLock can eliminate the tilt specifically occurring at the point where your 2" accessory slides into the focuser. Baader makes several models, such as the M72x1(M) and M64x0.75(M), that thread directly onto Takahashi focusers. While it ensures a perfectly aligned eyepiece holder, you should still check the rest of your imaging train for other potential sources of tilt, such as threaded adapters or the camera's mounting flange.

    Do Baader ClickLock clamps add length to the optical path?

    Yes, every eyepiece clamp adds some optical length. The exact amount varies by model. For telescopes with limited back focus, such as some Newtonians, it's important to verify you have enough focuser in-travel to accommodate the clamp. Baader also offers dedicated 37mm and 47mm ClickLock extensions for when you need to increase, rather than minimize, the optical path length.

    Is the Baader ClickLock clamp difficult to use with gloves on?

    No, it is designed for field use. The outer locking ring is wide and has a rubberized, high-friction grip, making it easy to operate even with thick gloves in cold weather. The short, gentle twist required to lock or unlock an accessory is much easier to manage than fumbling with small thumbscrews.

  • Available Options 1.25" to 2" (incl. 1.25" barrel), 2.7"(M) UNF/24G (Astro-Physics), M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5"), M75x1(M) (Feather Touch 3.0"), 4.1" UNF/24G(F) (Feather Touch 3.5"), M48x0.75(F) Filter Thread, M84x1(M) (Pentax), 2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT), 3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD), M64x0.75(M) (Takahashi), M56x1(F) (Celestron & SkyWatcher), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics / Skywatcher, S57/Newton Ring-Dovetail (Celestron & Sky-Watcher), M42x0.75(F) (T-2), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack), 37mm Extension, 47mm Extension.
    Net weight (kg) 0.20 (1.25" to 2" (incl. 1.25" barrel), M75x1(M) (Feather Touch 3.0"), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), 47mm Extension)
    0.16 (2.7"(M) UNF/24G (Astro-Physics), M68x1(M) (Zeiss), 37mm Extension)
    0.18 (M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5"))
    0.32 (4.1" UNF/24G(F) (Feather Touch 3.5"))
    0.15 (M48x0.75(F) Filter Thread, M42x0.75(F) (T-2))
    0.25 (M84x1(M) (Pentax))
    0.17 (2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT))
    0.22 (3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD), M72x1(M) (Takahashi))
    0.19 (M64x0.75(M) (Takahashi))
    0.14 (M56x1(F) (Celestron & SkyWatcher), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics / Skywatcher, S57/Newton Ring-Dovetail (Celestron & Sky-Watcher), M60x0.75(M) (Vixen), S58 (Baader Diamond Steeltrack))
    0.12 (M54x1(M) (Celestron, Sky-Watcher, Orion))
    0.13 (M56x0.75(F) (Takahashi))
    Compatible Brands Baader Planetarium, Celestron, Meade, Skywatcher (1.25" to 2" (incl. 1.25" barrel))
    Astro Physics, Feathertouch, TEC (2.7"(M) UNF/24G (Astro-Physics))
    Zeiss (M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5"), M75x1(M) (Feather Touch 3.0"), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M68x1(M) (Zeiss))
    Skywatcher (4.1" UNF/24G(F) (Feather Touch 3.5"), M48x0.75(F) Filter Thread, M54x1(M) (Celestron, Sky-Watcher, Orion), M42x0.75(F) (T-2), 37mm Extension)
    Pentax (M84x1(M) (Pentax))
    Baader Planetarium, Celestron, Zeiss (2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT))
    Celestron (3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD))
    Takahashi (M64x0.75(M) (Takahashi), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi))
    Celestron, Meade, Skywatcher (M56x1(F) (Celestron & SkyWatcher), S57/Newton Ring-Dovetail (Celestron & Sky-Watcher))
    Bresser, Explore Scientific, Omegon (M54x0.75(F) (Bresser, Orion, ES))
    Baader Planetarium, Skywatcher, TS-Optics (M54(M) x 0.75 for TS-Optics / Skywatcher)
    Vixen (M60x0.75(M) (Vixen))
    Baader Planetarium (S58 (Baader Diamond Steeltrack))
    All Telescopes in given Tube sizes (47mm Extension)
    Clamping System ClickLock
    Inner Diameter / Clear Aperture (mm) 28 (1.25" to 2" (incl. 1.25" barrel))
    50.8 (2") (2.7"(M) UNF/24G (Astro-Physics), M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5"), M75x1(M) (Feather Touch 3.0"), 4.1" UNF/24G(F) (Feather Touch 3.5"), M84x1(M) (Pentax), 2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT), 3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD), M64x0.75(M) (Takahashi), M56x1(F) (Celestron & SkyWatcher), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics / Skywatcher, S57/Newton Ring-Dovetail (Celestron & Sky-Watcher), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack), 37mm Extension, 47mm Extension)
    48 (M48x0.75(F) Filter Thread)
    42 (M42x0.75(F) (T-2))
    Outer Diameter 68 (1.25" to 2" (incl. 1.25" barrel), M68x0.75(F) (Hex Focuser from Explore Scientific), M48x0.75(F) Filter Thread, 2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT), M64x0.75(M) (Takahashi), M56x1(F) (Celestron & SkyWatcher), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics / Skywatcher, S57/Newton Ring-Dovetail (Celestron & Sky-Watcher), M42x0.75(F) (T-2), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack), 37mm Extension, 47mm Extension)
    84.5 (2.7"(M) UNF/24G (Astro-Physics), M72x1(M) (Takahashi))
    112 (4.1" UNF/24G(F) (Feather Touch 3.5"))
    94 (M84x1(M) (Pentax))
    89.5 (3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD))
    Type of Adapter Nosepiece, Expanding Adapter, Eyepiece Clamp (1.25" to 2" (incl. 1.25" barrel))
    Eyepiece Clamp (2.7"(M) UNF/24G (Astro-Physics), M68x0.75(F) (Hex Focuser from Explore Scientific), M63x1(M) (Feather Touch 2.5"), M75x1(M) (Feather Touch 3.0"), 4.1" UNF/24G(F) (Feather Touch 3.5"), M48x0.75(F) Filter Thread, M84x1(M) (Pentax), 2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT), 3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD), M64x0.75(M) (Takahashi), M56x1(F) (Celestron & SkyWatcher), M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), M54(M) x 0.75 for TS-Optics / Skywatcher, S57/Newton Ring-Dovetail (Celestron & Sky-Watcher), M42x0.75(F) (T-2), M72x1(M) (Takahashi), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen), M68x1(M) (Zeiss), S58 (Baader Diamond Steeltrack))
    Nosepiece, Extension, Eyepiece Clamp (37mm Extension, 47mm Extension)
    Optical length (mm) 47 (1.25" to 2" (incl. 1.25" barrel), 2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT), 47mm Extension)
    31 (2.7"(M) UNF/24G (Astro-Physics), M68x1(M) (Zeiss))
    37 (M68x0.75(F) (Hex Focuser from Explore Scientific), 37mm Extension)
    39 (M63x1(M) (Feather Touch 2.5"))
    39.5 (M75x1(M) (Feather Touch 3.0"))
    30 (4.1" UNF/24G(F) (Feather Touch 3.5"), M54x1(M) (Celestron, Sky-Watcher, Orion), M54x0.75(F) (Bresser, Orion, ES), S57/Newton Ring-Dovetail (Celestron & Sky-Watcher), M56x0.75(F) (Takahashi), M60x0.75(M) (Vixen))
    36.6 (M48x0.75(F) Filter Thread, M42x0.75(F) (T-2))
    40 (M84x1(M) (Pentax), 3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD), M64x0.75(M) (Takahashi))
    30 mm (M56x1(F) (Celestron & SkyWatcher), S58 (Baader Diamond Steeltrack))
    44 (M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon))
    35 (M54(M) x 0.75 for TS-Optics / Skywatcher)
    41 (M72x1(M) (Takahashi))
    Inner Connection (eyepiece/-camera-sided) ø 2" (50.8mm)
    Inner Connection (lens sided) M28.5 (1.25" to 2" (incl. 1.25" barrel))
    M68 x 0.75 (M68x0.75(F) (Hex Focuser from Explore Scientific))
    4.1" Thread (104.1 mm) (4.1" UNF/24G(F) (Feather Touch 3.5"))
    M48 (M48x0.75(F) Filter Thread, 47mm Extension)
    2"/SCT Thread (50.8mm) (2" SCT(F) Thread (5" SCT, 6" SCT/HD, 8" SCT/HD, 9.25" SCT))
    3.3"/SCT Thread (84.2 mm) (3.3" Large SCT Thread (9.25" HD, 11" SCT/HD, 14" SCT/HD))
    M56 x 1 (M56x1(F) (Celestron & SkyWatcher))
    M74 x 1 (M74x1(F) (Sky-Watcher Esprit, TS-Optics, Omegon))
    M54 x 0.75 (M54x0.75(F) (Bresser, Orion, ES))
    M42 x 0.75 (T-2) (M42x0.75(F) (T-2))
    M56 x 0.75 (M56x0.75(F) (Takahashi))
    S52 (37mm Extension)
    Outer Connection (lens sided) ø 1¼" (31.75 mm) (1.25" to 2" (incl. 1.25" barrel))
    2.7" Thread (68.5 mm) (2.7"(M) UNF/24G (Astro-Physics))
    M63 x 1 (M63x1(M) (Feather Touch 2.5"))
    M75 x 1 (M75x1(M) (Feather Touch 3.0"))
    M84 x 1 (M84x1(M) (Pentax))
    M64 x 0.75 (M64x0.75(M) (Takahashi))
    M54 x 1 (M54x1(M) (Celestron, Sky-Watcher, Orion))
    M54 x 0.75 (M54(M) x 0.75 for TS-Optics / Skywatcher)
    S57 (S57/Newton Ring-Dovetail (Celestron & Sky-Watcher))
    M60 x 0.75 (M60x0.75(M) (Vixen))
    M68 x 1 (M68x1(M) (Zeiss))
    S58 (S58 (Baader Diamond Steeltrack))
    ø 2" (50.8mm) (37mm Extension, 47mm Extension)
    • Baader ClickLock Clamp (Selected Model)

      × 1

  • Baader Planetarium Warranty