"Helping Astronomers Measure The Stars Since 1979"

Optec is a design and manufacturing firm specializing in electro-optical products used in astronomy, atmospheric science and microscopy. We are located in the town of Lowell, Michigan near the banks of the Grand River. Our company is small but we utilize state-of-the-art equipment and techniques in the design and manufacture of our products.

Updated TCF-S driver - Now with ASCOM Local Server

TCF-S FocuserASCOM StandardsOptec has just released a new version of the TCF-S driver software.  Fully compatible with older TCF focusers, version 6 now includes an ASCOM Local Server with the Optec TCF-S Commander acting as a client.  This major change now allows the Optec program to be open and connected simultaneously with other ASCOM clients including Maxim D/L, Sequence Generator Pro, and TheSky X. 

The improvements to the Temperature Compensation routines alone are worth the update.  Now, with the improved Temp Comp Learn Wizard you will have both slope (temperature coefficient, or TC) and the intercept.  This allows the focuser to immediately move to the current best focus position upon startup.  Many users are finding no need to re-focus their telescope for months at a time.

Additional details are available at the TCF-S Focuser Downloads page.

Does Temperature Compensation Really Work?

"Diffraction Does Not Lie" -a famous scientist with funny hair.

Watch a Bahtinov Mask demonstration showing Temperature Compensation in Action.  What else to do on a night with really bad skies?  How about a test?  Using only the built-in temperature compensation of the TCF-S focuser, this video demonstrates that temperature compensation can be very effective at keeping a telescope in focus throughout even minor temperature changes.


Available Now!  - Gemini Focusing Rotator

Introducing a new heavy duty combination rotator and focuser now available for purchase. Capable of handling extremely large camera loads, the Gemini Focusing Rotator will offer a level of performance unparalleled by anything in its price range. 

Announced and available at NEAF 2015, the Gemini can now be ordered for May delivery. 

Visit our dedicated Gemini webpages for additional details and ordering information. 

Based upon the success of the FocusLynx Control system, the new Gemini can be controlled through serial, USB, wired Ethernet and 802.11b WiFi networks.  Gemini features two stepper motors with rotation and focus in one compact device.  At only 2-1/4" thickness and 1/2-inch of travel, the Gemini will fit telescopes and long camera packages that previously could not be supported. 

Contact us by email (sales@optecinc.com) or join the Optec Yahoo Group for notifications as details become available.

#19070 - Alnitak Astrosystems Flip-Mask

Remotely Controlled Bahtinov Mask

Building on the success of the Alnitak Astrosystems Flip-Flat, Optec has designed two new products:  a robotic Remote Dust Cover for larger OTA's in remote locations, and the remotely controlled Bahtinov Mask.

Contact Optec to order your custom Flip-Mask today!

#19075 - Alnitak Remote Dust Cover

Some of our customers have been testing the new Flip-Mask Dust Cover in various sizes for a variety of OTA's.  One beta-tester provided the video above showing the new Remote Dust Cover mounted on his Deep Sky Instruments RC14 telescope. 

Contact Optec sales to order this new Alnitak device to fit your telescope. Prices starting at just $395 (Stock no. 19075).