The QHYCFW2-M (medium size) filter wheel holds five standard 2-inch filters in threaded cells or five round 50mm unmounted filters.  An optional carousel allows the use of seven 36mm unmounted filters.

 

The QHYCFW2-M comes in two versions:  QHYCFW2-M-UltraSlim and QHYCFW2-M-Standard. The UltraSlim is 17mm thick and weighs 675g.  The Standard version is 21.5mm thick and weighs 705g.

 

The QHYCFW2-M is a second generation color filter wheel.  We improved both the mechanical and electrical design. The QHYCFW2-M has the following advantages:

 

    Gear driven disk. Stable and solid.

    Motor moved to a corner to increase the work area.

    Increased the precision of filter positioning.

    Supports USB port and powered by USB when connected with computer.

    Supports the 4-pin QHY CFW socket on QHY11,QHY21/22/23 and InterCam series cameras.

    Supports the 2-pin socket with QHY9 (requires external power supply).

    Open Source Firmware, Arduino compatible

 

Driver and Software Download ASCOM FiltersPlug-in Latest Version Previous Version ASCOM Filter[RS232] plug-in Latest Version Previous Version

Document Download Manual QHYCFW User Manual   FAQ Refer to User Manual   Others Solution to the problem of collision between OAG's bolt and filterwheel's bol

Mechanical size for QHYCFW2-M-SR
Mechanical size for QHYCFW2-M-US

QHYCFW2-M-US Supported Filters
5 position 2-inch/50mm	2-inch mounted filters: maxium filter cell thickness  4.5mm (cell threads not included) 50mm unmounted filters: 1-4.5mm thick filters
7 position 36mm	1-4.5mm thick filters
8 position 1.25-inch	Maxium filter cell thickness 4.5mm (not including the cell threads)
QHYCFW2-M-SR Supported Filters
5 position 2-inch/50mm	2-inch mounted filters: maxiumfilter cell thickness 8mm (not includes the cell threads) 50mm unmounted filters: 1-8mm thick filters
7 position 36mm	1-8mm thick filters
8 position 1.25-inch	Maxium filter cell thickness 8mm (not including the cell threads)