Optec, Inc.

Optec-DSI 3.5x24tpi male thread adapter to STL 2.156x24tpi thread. Specifications Outside Diameter: 3.82" (97.0mm) Overall Height: 0.70" (17.8mm) Clear Aperture: 1.88" (47.8mm) Back-focus Usage: 0.15" (3.8mm) Drawing

Optec-DSI 3.5x24tpi male thread to male SCT 2"x24tpi thread adapter Outside Diameter: 3.82" (97.0mm) Overall Height: 0.70" (17.8mm) Clear Aperture: 1.78" (45.2mm) Back-focus Usage: 0.15" (3.8mm)

Optec-DSI 3.5x24tpi male thread adapter to male T-thread.     Specifications Outside Diameter: 3.82" (97.0mm) Overall Height: 0.70" (17.8mm) Clear Aperture: 1.38" (35.0mm) Back-focus Usage: 0.15" (3.8mm) Drawing

Optec-DSI 3.5x24tpi male thread adapter to M54 x 0.75mm camera thread Outside Diameter: 3.82" (97.0mm) Overall Height: 0.62" (15.7mm) Clear Aperture: 1.97" (50.0mm) Back-focus Usage: 0.15" (3.8mm) Drawing

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...