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16mm Extender Tube for Pyxis 2-inch Camera Mount (17654)

  • 4500

This item is out of stock but you can place an order now and we’ll ship when it becomes available.


Camera Adapters

How do you attach your camera?

Over the years, Optec has developed dozens of adapters and custom fittings for various cameras and mounts. While most astronomical cameras have a female T-thread mount, many of the larger chip cameras are now being offered with even larger mechanical interfaces, such as the relatively new 3-inch 24tpi female mount available on Apogee, SBIG, and a modified version on the FLI cameras. However, there are a variety of other mounts such as the STL 4-bolt mount.

We classify our camera mounts by the size and shape of the "telescope" side mechanical interface for a typical configuration. These mounts correspond to many of our astronomy products. For example:

  • OPTEC-2300 Camera Adapters for use with the Pyxis rotator, IFW Universal Mounting Ring, and Perseus 4-port parfocalizing rings.
    • The OPTEC-2300 circular dovetail mount is used for the TCF-S focuser and IFW filter wheel to allow easy connections from most any camera. If your scope or accessory is not listed, do not hesitate to call.
  • OPTEC-2380 Mounting Rings are threaded mounts for use with the IFW and MAXfilter systems. 
    • The OPTEC-2380 circular dovetail mount is used for the IFW Intelligent Filter Wheel and Perseus 4-port selector parfocalizing rings to attach most cameras and accessories.
  • OPTEC-3000 Dovetail Mounts for use with the 3-inch TCF-S3, Pyxis 3", and IFW-3.

OPTEC-2300 Camera Adapters - Dovetail Mount

Camera side Adapters for the Pyxis 2-inch rotator.

Optec 2.3" Dovetail Mount

The OPTEC-2300 circular dovetail mount is used by NextGEN line of telecompressors, the Pyxis 2-inch camera field rotator, the IFW 2-inch filter wheel, and the Perseus 4-port Instrument Selector.

These mounts allow easy connections from any of these devices to a variety of camera mount.   One side of each adapter below has the Optec 2.3" dovetail mount and the other side presents a camera specific mount, such as the T-thread, or C-mount.  If your camera or accessory is not listed, do not hesitate to call.  We are constantly adding new adapters to our catalog.

Each camera mount is held in place with three set screws and can be adjusted a full 360-degrees for best rotational alignment.

#17654 - 16mm Extender Tube for Pyxis 2-inch Camera Mount

16mm Extender Tube
The #17654 Extender Tube adds 16mm of back-focus to any OPTEC-2300 dovetail device.


  • Outside Diameter:  2.65" (67.3mm)
  • Overall Height: 0.88" (22.4mm)
  • Clear Aperture:  1.9"  (48.3mm)
  • Weight: 2.88 oz (81.6 g)
  • Back-focus Usage: 0.63" (16mm)
  • Telescope Side Connection:  OPTEC-2300 Dovetail
  • Camera Side Connection:: OPTEC-2300 Receiver

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