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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics
Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics

Baader Planetarium Adapter 3.3"i to M68i – for Celestron / Astro Physics

par Baader Planetarium
UGC BAA-2458217
$176.00 - $176.00
$176.00
$176.00 - $176.00
$176.00
Égalisation de prix!
  • Connects 3.3" telescope threads to the M68i accessory system
  • Designed for Celestron EdgeHD 9.25", 11", and 14" models
  • Compatible with Celestron SC 11" and 14" telescopes
  • Provides a rigid, threaded connection for heavy imaging trains
En rupture temporaire
Alerte de retour en stock
Info disponibilité
Admissible à la livraison GRATUITE aux USA pour les commandes de plus de 350$.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Adapter 3.3"i to M68i – for Celestron / Astro Physics

    This Baader Planetarium adapter directly converts the large 3.3" rear cell thread on Celestron EdgeHD 9.25", 11", and 14" telescopes to the versatile Baader M68i system. It also establishes a secure M68i connection for standard Schmidt-Cassegrain 11" and 14" models, as well as select Astro-Physics refractors that utilize the 3.3" thread standard.

    Secure M68 System Integration for Celestron/A-P 3.3" Threads

    For imagers using large-format sensors, the native 3.3" thread on Celestron's larger SCTs offers the widest possible clear aperture. This adapter allows you to leverage that full aperture by connecting directly to the Baader M68 system, which is designed to provide an unvignetted, flexure-free optical path for heavy components like off-axis guiders, filter wheels, and large cameras. By replacing a standard 2" visual back, you create a fully threaded, rigid imaging train from the telescope's rear cell outwards, eliminating a common source of tilt and instability.

  • What is the primary purpose of the Adapter 3.3"i to M68i?

    This adapter's sole function is to create a robust, large-diameter threaded connection between a telescope with a 3.3" rear thread (like large Celestron SCTs) and the Baader M68i system of accessories. This is essential for building a stable imaging train that avoids the vignetting and flexure possible with smaller 2" connections.

    Will this adapter work on my Celestron EdgeHD 8" telescope?

    No. The Celestron EdgeHD 8" uses a smaller 2" SCT thread on its rear cell. This adapter is specifically designed for the larger 3.3" thread found on the EdgeHD 9.25", 11", and 14" models, as well as the standard SC 11" and 14" telescopes.

    I have a Celestron 11" SCT and want to use a Baader M68 Off-Axis Guider. Is this the part I need?

    Yes, this is the correct starting point. The Adapter 3.3"i to M68i attaches directly to your telescope's 3.3" rear cell thread, providing the necessary female M68i thread to begin building your M68 imaging train with components like the Baader M68 Off-Axis Guider.

    Is this adapter the same as a standard 2" visual back?

    No, it is a significant upgrade. A standard visual back typically uses thumbscrews to hold 2" accessories, which can introduce tilt. This adapter provides a much larger clear aperture and a fully threaded M68 connection, ensuring perfect alignment and rigidity for heavy, demanding imaging setups.

    Which Astro-Physics telescopes are compatible with this adapter?

    This adapter is specified for Astro-Physics telescopes that feature a 3.3" rear thread. You must confirm the thread specification on your specific Astro-Physics focuser or telescope model before purchasing to ensure compatibility.

    Does the 3.3"i to M68i adapter add significant back focus length?

    Like any mechanical component, this adapter has a physical thickness that contributes to the total optical path length. It is designed to integrate seamlessly within the Baader M68 system, but you must account for its path length when calculating your final back focus spacing for correctors or reducers.

  • Telescope Side Connection 3.3" Female Thread
    Accessory Side Connection M68i Female Thread
    Celestron Compatibility EdgeHD 9.25", 11", 14" and SC 11", 14"
    Astro-Physics Compatibility Models with 3.3" rear thread

    • Adapter 3.3"i to M68i

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  • No manual or software is available for this product.

  • Baader Planetarium Warranty