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  1. Optec - 1/2" Extender for OPTEC-2400 dovetail mounts, female to male.

    Optec - 1/2" Extender for OPTEC-2400 dovetail mounts, female to male.

    The #17653 1/2-inch extension spacer mounts directly on to the OPTEC-2400 male dovetail and presents the OPTEC-2400 male dovetail for attachment of any device with an OPTEC-2400 receiver ... Learn More
    Model#: 17653
    $60.00

  2. Optec - 1" Extender for OPTEC-2400 dovetail mounts, female to male.

    Optec - 1" Extender for OPTEC-2400 dovetail mounts, female to male.

    The #17655 1-inch extension spacer mounts directly on to the OPTEC-2400 male dovetail and presents the same OPTEC-2400 male dovetail for attachment of any device with an OPTEC-2400 receiver

    ...
    Learn More
    Model#: 17655
    $65.00

  3. 17656

    Optec - Takahashi FS-78 mount, fits the 2.2-" thread directly to OPTEC-2400 dovetail adapter.

    The  Takahashi 2.2" mount fits the FS-78 telescope drawtube directly. This adapter presents the OPTEC-2400 dovetail for attachment of any device with an OPTEC-2400 receiver, including the TCF-S focuser and IFW intelligent filter wheel ... Learn More
    Model#: 17656
    $65.00

  4. Optec - 2-" to 1.25" adapter fits directly into the 2" TCF focuser.

    Optec - 2-" to 1.25" adapter fits directly into the 2" TCF focuser.

    The  2-inch to 1-1/4-inch Standard Adapter is our original secure fit adapter for 1-1/4-inch eyepieces, camera nosepieces, and SSP instrument telescope adapters ... Learn More
    Model#: 17662
    $45.00

  5. Optec - 2-" to 1.25" compression adapter fits directly into the 2" TCF focuser.

    Optec - 2-" to 1.25" compression adapter fits directly into the 2" TCF focuser.

    The  2-inch to 1-1/4-inch Compression Adapter is our improved version of the #17662 1-1/4" adapter ... Learn More
    Model#: 17663
    $65.00

  6. Optec - 2-" to T-thread adapter fits directly into the 2" TCF focuser.

    Optec - 2-" to T-thread adapter fits directly into the 2" TCF focuser.

    The 2-inch to T-thread Adapter is our original secure fit adapter for M42 x 0.75mm T-thread cameras requiring  a male T or T2 screw-in threaded nosepiece.   By holding tight tolerances (+/- 0 ... Learn More
    Model#: 17664
    $45.00

  7. Optec - 2-" to SCT thread (2" diameter) adapter, fits directly into the 2� TCF focuser.

    Optec - 2-" to SCT thread (2" diameter) adapter, fits directly into the 2� TCF focuser.

    The 2-inch to SCT thread Adapter is our original secure fit adapter for 2" x 24tpi  SCT male telescope thread.  By holding tight tolerances (+/- 0.003") Optec has achieved a slip-fit that is second-to-none ... Learn More
    Model#: 17665
    $45.00

  8. Optec - 2-" to 3"x 24 tpi male threaded mount.

    Optec - 2-" to 3"x 24 tpi male threaded mount.

    The 2-inch to 3-inch thread adapter was developed to easily adapt the Apogee and SBIG cameras and filters wheels for the TCF-S focuser.By holding tight tolerances (+/- 0.003") Optec has achieved a slip-fit that is second-to-none ... Learn More
    Model#: 17666
    $95.00

  9. Optec Model TCF-Si Integrated Temperature Compensating Focuser

    Optec - Model TCF-Si Integrated Temperature Compensating Focuser

    Optec has created integrated variants of their main line of focusers: ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17668
    $695.00

  10. Optec - Model TCF-S, 2" Temperature Compensating Focuser.

    Optec - Model TCF-S, 2" Temperature Compensating Focuser.

    Mechanically, the TCF-S is a robust Crayford style motorized focuser with high repeatability, ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17670
    $829.00

  11. Optec - 6-foot RJ-12 Reverse Cable for use with #17695 converter

    Optec - 6-foot RJ-12 Reverse Cable for use with #17695 converter

    simplest way to convert from the flat Reverse cable to a ... Learn More
    Model#: 17671
    $10.00

  12. Optec - 12-foot RJ-12 Reverse Cable for use with #17695 converter

    Optec - 12-foot RJ-12 Reverse Cable for use with #17695 converter

    the simplest way to convert from the flat Reverse cable to ... Learn More
    Model#: 17672
    $15.00

  13. Optec - 25-foot RJ-12 Reverse Cable for use with #17695 converter

    Optec - 25-foot RJ-12 Reverse Cable for use with #17695 converter

    the simplest way to convert from the flat Reverse cable to ... Learn More
    Model#: 17673
    $25.00

  14. Optec - 50-foot RJ-12 Reverse Cable for use with #17695 converter

    Optec - 50-foot RJ-12 Reverse Cable for use with #17695 converter

    the simplest way to convert from the flat Reverse cable to ... Learn More
    Model#: 17674
    $30.00

  15. Optec Model TCF-S3i, 3" Integrated Temperature Compensating Focuser

    Optec - Model TCF-S3i, 3" Integrated Temperature Compensating Focuser.

    The TCF-S has a new big brother - the TCF-S3. This 5 pound focuser has all the same features of the TCF-S but is just bigger and stronger ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17676
    $1,595.00

  16. Optec - Model TCF-S3 3" Temperature Compensating Focuser

    Optec - Model TCF-S3 3" Temperature Compensating Focuser

    Same as 17670 except the focuser is much more massive and capable of handling instrument loads up to 25 pounds. Recommended for observatory class telescopes with large field diameters ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: 17677
    $1,799.00

  17. Optec - Remote IN/OUT Keypad

    Optec - Remote IN/OUT Keypad

    The plastic control box for the TCF-S focuser was never intended for frequent use at the telescope using it in a manual operating mode ... Learn More
    Model#: 17680
    $95.00

  18. Optec - USB to Serial Converter 1-Port.

    Optec - USB to Serial Converter 1-Port.

    USB to Serial Converter adapts the SSP serial output to a USB 2.0 interface. Single port converter.IMPORTANT: Not all USB-to-Serial converters are compatible with Optec software ... Learn More
    Model#: 17690
    $30.00

  19. Optec - USB to Serial Converter 4-Port.

    Optec - USB to Serial Converter 4-Port.

    4-Port USB to Serial Converter adapts the SSP serial output to a USB 2.0 interface. Four seperate COM ports allow all of the Optec instruments to interface to a single USB port ... Learn More
    Model#: 17691
    $175.00

  20. Optec - PC Serial Port Converter, DB-9 to RJ-12, for TCF-S Focuser.

    Optec - PC Serial Port Converter, DB-9 to RJ-12, for TCF-S Focuser.

    This simple adapter remains the ... Learn More
    Model#: 17695
    $15.00

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Optec, Inc. is located in Lowell, Michigan, just east of the Grand Rapids metropolitan area. For many years now the company has been in the forefront of research and development of astronomical, visibility, and video/CCD microscopy optical instruments for both amateurs and professional alike.

Optec was incorporated in 1979 and is the successor to DOAA Enterprises; a Detroit based company founded by an Oakland University college student, Gerald Persha. Under the leadership of Persha, Optec has grown from a small basement operation to a corporation employing 7 technicians, machinists, and sales staff. Optec's roots are founded strongly in astronomical research instrumentation with products such as the SSP line of solid-state photometers, photomultiplier tube and CCD photometers, the patented TCF- temperature compensated focuser and the recent addition of the Pyxis 3-inch, a high precision camera field rotator for large telescopes.

Optec has a support staff of many diverse and qualified individuals, who take great pride in their accomplishments at the company. 

Optec maintains and uses the Optec Observatory, a small observatory and testing laboratory for Optec's astronomical product line. Using a Meade 10" LX200 telescope and CCD cameras from SBIG. In addition to the Optec SSP single channel photometer line, the Optec Observatory is fully computer controlled with separate control room and observing deck. Recent additions to the observatory now allow remote operations of the telescope, photometer, and CCD camera control software. 

In addition to the astronomical product line, Optec designs and manufactures optical couplers for video/CCD microscopy, atmospheric visibility measuring instruments such as the Model LPV transmissometer and the NGN integrating nephelometer. These unique instruments are used to monitor the air quality in many of the national parks in the USA as part of the Improve Network.