Optec

The Flat-Man L is the big brother of the Flat-Man, for telescopes in the 8-12.5" range. The Flat-Man L uses the same electroluminescent technology ...

Re-designed and re-introduced in 2020, Optec's new Flat-Man XL-2 electroluminescent calibration panels make it easy to obtain your flat-field calib...

Alnitak Astrosystems' flagship product, the Flip-Flat, is a robotic lenscap and flat field illumination source for small to medium size refractors....

Rich Simons of Deep Sky Instruments and Optec have jointly developed a new, larger diameter standard spacer for large aperture telescopes. Like th...

Optec-DSI 3.5x24tpi male thread to M72x1mm (male) Takahashi thread. Outside Diameter: 3.82" (97.0mm) Overall Height: 0.74" (18.8mm) Clear Aperture...

Optec engineers have developed a completely new concept for combining telescope focus and camera rotation functions into a single robust, yet compa...

The #19830 OPTEC-4300 to female Optec/DSI 3.5" threaded receiver allows any combination of our DSI 3.5-inch spacers to be easily installed on the c...

Optec engineers have developed a low profile, yet extremely robust 3-inch focuser for telescope installations where back-focus is at a premium. Wi...