Optec, Inc.

Optec-DSI 3.5x24tpi male thread adapter to OPTEC-2400 male dovetail Specifications Outside Diameter: 3.82" (97.0mm) Overall Height: 0.74" (18.9mm) Clear Aperture: 2.10" (53.3mm) Back-focus Usage: 0.15" (3.8mm) Drawing

Optec-DSI 3.5x24tpi male thread adapter to 2-inch receiver. Specifications Outside Diameter: 3.82" (97.0mm) Overall Height: 1.0" (25.4mm) Clear Aperture: 2.0" (50.8mm) Back-focus Usage: 0.15" (3.8mm) Drawing

M117x1mm female to Optec-DSI 3.5x24tpi female thread adapter. Specifications Outside Diameter: 4.95" (125.7mm) Overall Height: 0.74" (18.9mm) Clear Aperture: 3.76" (95.5mm) Back-focus Usage: 0.13" (3.3mm) Drawing

M90x1mm female to Optec-DSI 3.5x24tpi female thread adapter.

 Optec Inc. Optec-DSI 3.5x24tpi Knurled Female Threaded Retaining Ring Innovative Joint Development: Created by Deep Sky Instruments and Optec, enhancing functionality for large aperture telescopes. Astro-Physics Thread Standard: Adheres to...

The Optec-DSI 3.5x24tpi to AstroPhysics 2.7" adapter converts a DSI 3.5" male thread to an AstroPhysics 2.7" female thread Specifications   Outside Diameter: 3.74" (95.0mm) Overall Height: 0.5" (12.7mm) Clear...

 Optec Inc. Optec-DSI 3.5x24tpi Extension Tube, 3” Length   Innovative Collaboration: Developed by Deep Sky Instruments and Optec, enhancing telescope capability for large aperture telescopes. Industry Standard Enhancement: Complements the...

 Optec Inc. Optec-DSI 3.5x24tpi Extension Tube, ¾” Length Collaborative Design: Developed in partnership by Deep Sky Instruments and Optec, tailored for large aperture telescopes. Astro-Physics Standard Compatibility: Enhances the widely...

Optec Inc. Optec-DSI 3.5x24tpi Extension Tube, 1/2” Length Joint Development Effort: A collaborative creation by Deep Sky Instruments and Optec, specifically for enhancing large aperture telescopes. Astro-Physics Compatibility: Complements the...

  Optec Inc. Optec-DSI 3.5x24tpi Extension Tube Set, 5-Piece Innovative Collaboration: Developed jointly by Rich Simons of Deep Sky Instruments and Optec, targeting large aperture telescopes. Enhanced Diameter Standard: A...

Optec Inc. Optec-DSI 3.5x24tpi Extension Tube Set, 4-piece Innovative Collaboration: Jointly developed by Deep Sky Instruments and Optec, catering to large aperture telescopes. Astronomy Industry Standard: Complements the Astro-Physics 2.7-inch...

The #17834 3-inch Takahashi mount screws directly onto Takahashi equipment with female 72mm threads and presents an OPTEC-3000 dovetail to attach to any product with an OPTEC-3000 receiver, including the...