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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