IFW More Info

The IFW can be controlled by either the pushbutton switches on the hand control, an SBIG camera controller, or by an external computer via an RS-232 serial interface or COM port. The RS-232 operating protocol is a set of simple ASCII commands that any programmer can easily implement.

While any software capable of controlling the SBIG CFW-8/9/10 filter wheel can immediately control the IFW using the pulse mode, most of the popular camera control software writers have elected to control the IFW directly with the serial interface. This allows the filter name to be readily available to the cameral control program. Optec’s own IFW control software can be used for the editing the filter descriptions and also for filter selection. The Optec control software is an open program and the source code is provided to be examined after the installation.

The wheel is turned by a friction roller that engages a Neoprene O-ring that is mounted on the outside circumference of the wheel. Quiet and accurate it take only a couple of seconds to change filters. Position accuracy and repeatability is about+/-0.015 inches referenced to the center of the filters. The IFW adds about 1 inch to the back focus distance.

Various telescope and camera adapters are available to fit most configurations. See IFW Accessories for a complete list.

For owners of the Paramount ME, Optec offers a special kit that can conveniently wire the IFW through the mount. In addition, both the TCF-S and Pyxis can also be mounted and wired through the mount for easier use and less cables. Click here to download more information.