Optec Inc. Celestron C11/C14 to OPTEC-4300 Adapter: Advanced Mounting for Large SCTs

Celestron Rear Cell Conversion: Converts the 3.29-inch rear cell thread found on certain Celestron 9.25", all 11", and 14" SCT and EdgeHD OTAs to a male OPTEC-4300 dovetail standard.
OPTEC-4300 Dovetail Compatibility: Features the OPTEC-4300 dovetail, enabling secure attachment of compatible Optec devices like focusers and rotators.
Versatile Telescope Adaptation: Compatible with Celestron Classic 11" and 14" SCT telescopes, EdgeHD 9.25", C1100 EdgeHD 11", and C1400 EdgeHD 14" SCT telescopes.
Optec Device Integration: Ideal for connecting the Gemini Focusing Rotator or the TCF-Lynx3 Gen2 3-inch focuser, enhancing the telescope's functionality.
Durable and Reliable Design: Constructed from high-quality materials, guaranteeing robustness and stability for extended astronomical use.
Easy to Install and Adapt: Designed for straightforward attachment, allowing for quick setup changes and device swaps.
Precision Engineered for Stability: Ensures a tight and secure connection, minimizing potential misalignment and maximizing imaging quality.
Ideal for Advanced Astrophotography: Essential for astrophotographers using large Celestron SCTs with OPTEC-4300 compatible accessories.
Professional Grade Adapter: Perfect for both amateur and professional astronomers who require high-quality, reliable adapters for their advanced telescope setups.
Customizable Telescope Configuration: Facilitates the creation of tailored telescope configurations, allowing astronomers to achieve their specific observational goals.

Specifications

Compatible With

Celestron Classic 11" and 14" SCT telescopes,
Celestron EdgeHD 9.25" SCT telescope,
Celestron C1100 EdgeHD 11" SCT telescope,
Celestron C1400 EdgeHD 14" SCT telescope,
Gemini Focusing Rotator,
TCF-Lynx3 Gen2 Focuser,
Any OPTEC-4300 receiver adapter.

Inside Diameter: 3.15" (80mm)
Outside Diameter: 4.95" (125.6mm)
Overall Height: 0.52" (13.2mm)
Clear Aperture: 3.15" (80mm)
Weight: 6.4 oz (180 g)
Back-Focus Usage: -0.22" (-5.6mm)

Note that most SCT back-focus distance measurements are made from the TOP of the threads. Thus, some adapters can have a negative back-focus consumption or usage when the focuser actually rests below the top of the OTA threads.

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Optec Inc. Celestron C11/C14 large 3.25” thread to OPTEC-4300 male dovetail mount

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