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QHY CFW3 Small Color Filter Wheel 1.25" 7 Position - Thin Version - QHYCFW3S-US

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QHY 3rd Generation S Color Filter Wheel - Thin Version

Combining an ultra-thin stepper motor drive with the capacity for fully automatic filter switching, QHY's innovative new third generation QHY color filter wheels provide state-of-the-art performance. This specific filter wheel has a thickness of 15.5 mm and accepts up to seven 1.25" mm filters. As the thin version of the small filter wheel model, the filter thickness maximum for mounted filters is 5.5 mm, excluding filter thread height.

Ultra-Thin Hybrid Stepper Motor Drive

For their 3rd generation color filter wheel design, QHYCCD has selected a high-quality ultra-thin hybrid stepper motor. Contrary to PM stepper motors employed by a lot of other filter wheels, this hybrid stepper motor offers better precision as well as a smaller step angle. The motor is enclosed to prevent dust from entering, thus improving reliability and prolonging motor life. Plus, the filter carousel can be rotated in both clockwise and counterclockwise directions for conveniently quick rotation completion.

Friction Drive with Zero Backlash

With this new 3rd generation color filter wheel model, QHYCCD is using a friction drive that results in zero operational backlash, a step up from their previous 2nd generation filter wheels which used a gear drive.

USB Serial Port Switch

Fast shifting between serial communication and USB communication modes is facilitated by a serial port switch.

USB Powered

Supports QHY 4-pin connection control mode, contains open source Arduino-compatible firmware, and is designed to work with a similar sized QHY Off-Axis Guider (OAG).

Beautiful Appearance

Cut from a single section of aluminum, QHYCFW3 filter wheels are expertly crafted with precision CNC machining and an exquisite main body finish. With a small design and comfortable feel, you won't want to put this filter wheel down!

Specifically designed to allow unmounted filters of varying thicknesses to be installed, the filter carousel in this small model QHY color filter wheel thin version also permits the installation of mounted filters under 5.5 mm in thickness to the same filter disc. Filter positioning is made quicker and more accurate.

Please Note : Image shows two separate versions of the QHYCFW3 filter wheel. If you purchase this item, you will receive only the 7 position filter wheel.