Optec Inc. 2-inch to T-thread Adapter: Precision Integration for Cameras and Focusers

• Designed for T-thread Cameras: Ideal for M42 x 0.75mm T-thread cameras requiring a male T or T2 screw-in threaded nosepiece.
• Precision Fit with TCF Focusers: When used with the TCF-S focuser, the adapter's precision-machined dovetail perfectly matches the focuser's thumbscrews for a secure fit.
• Eliminates Flexure: The adapter design ensures a flexure-free connection when tightened with the focuser's thumbscrews, enhancing imaging stability.
• Rugged and Easy to Use: Features a heavy wall and industry-standard T-thread, ensuring both durability and ease of use.
• Wide Compatibility: Compatible with nearly all commercially available CCD cameras, DSLR cameras (with T-rings), and many filter wheels.
• Rotational Alignment Feature: Includes a machined brass registration screw for easy rotational alignment, ideal for repeated camera positioning.
• Suited as a Camera Nosepiece: The wide flange and brass screw make it particularly useful as a 2-inch camera nosepiece, simplifying camera alignment and attachment.
• Removable Brass Screw: The brass registration screw can be removed for compatibility with non-Optec focusers.
• High-Quality Manufacturing: Holds tight tolerances of +/- 0.003 inches, ensuring a superior slip-fit.
• Efficient for Astrophotography: Streamlines the imaging setup process, making it more efficient and user-friendly, especially in low-light conditions.

Specifications

Camera-side Compatibility:

• TCF-S or TCF-Si focuser,
• TCF-S3 or TCF-S3i focuser with #17804 3-inch to 2-inch reducer,
• Any manufacturer's 2-inch focuser or receiver.

• Overall Outside Diameter: 2.38" (60mm)
• Outside Diameter (main body): 1.995" (50.7mm)
• Overall Height: 1.60" (40mm)
• Height of T-threads: 0.200" (5.0mm)
• Clear Aperture: 1.40" (35.3mm)
• Weight: 2.4 oz (70 g)
• Back-focus Usage: 0.25" (6.4 mm)