![Optec-DSI 3.5x24tpi to STL 2.156x24tpi (19914)](http://cloudbreakoptics.com/cdn/shop/products/19914_3d_{width}x.jpg?v=1606882698)
Description
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)
![](http://cloudbreakoptics.com/cdn/shop/files/telly_150x150.png?v=1614292674)
Buy risk-free: When it’s time to trade up you’ll get the most value for your used gear.