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This is a QHY 7-position electronic filter wheel for 1.25" filters. It is in excellent, pristine condition, like new. It includes the original box and all of the accessories shown in the pictures.
NOTE: All used QHY products include only what you see in the photos. If you do not see it, it is not included. If you have any questions about what is or is not included please feel free to reach out to us at 877-279-5280.
Description:
QHYCFW3 filter wheels utilize a new motor with direct drive and will reverse direction to take the shortest path when moving from one filter to another. For Example, in this demonstration the wheel moves from filter position 1 to position 2 to position 3 and then back to 1 again, over to position 7 and back to position 1 without ever making a complete rotation of the carousel. This saves time if you’re doing a lot of filter changes in one imaging session.
LED changes color for each filter position. The tricolor LED assigns one unique color or combination of colors to each filter position so you can tell if it’s moved to the correct position without removing it from the Telescope.
The CFW3 is also thin. This feature and the short back focus of the COLDMOS cameras means you can add one of several camera lens adapters for Canon and Nikon camera lenses for wide field imaging with the filter wheel.
In the center of the back plate is a 12-volt DC power port. This port is threaded for a short extension cable that is supplied with the camera that securely attaches such that it will not accidentally disconnect while you are imaging.
QHYCFW3 filter wheels utilize a new motor with direct drive and will reverse direction to take the shortest path when moving from one filter to another. For Example, in this demonstration the wheel moves from filter position 1 to position 2 to position 3 and then back to 1 again, over to position 7 and back to position 1 without ever making a complete rotation of the carousel. This saves time if you’re doing a lot of filter changes in one imaging session.
LED changes color for each filter position. The tricolor LED assigns one unique color or combination of colors to each filter position so you can tell if it’s moved to the correct position without removing it from the Telescope.
The CFW3 is also thin. This feature and the short back focus of the COLDMOS cameras means you can add one of several camera lens adapters for Canon and Nikon camera lenses for wide field imaging with the filter wheel.
In the center of the back plate is a 12-volt DC power port. This port is threaded for a short extension cable that is supplied with the camera that securely attaches such that it will not accidentally disconnect while you are imaging.
Specifications
| Filter Wheel | Filter Supported | Recommended Gears | Back Focus Consumed* | Usable height limit
(need to consider leaving gap space) |
Weight | Note |
| CFW3S-SR CFW3S-US |
7*1.25-inch mounted/31mm unmounted | QHY533M, QHY183M QHY5III Mono Planetary Cams (CFW1.25”Adapter needed） |
20mm (SR)+4mm (Adapter） 15.5mm (SR)+4mm (Adapter） |
QHYCFW3S-US 5.5mm QHYCFW3S-SR 10MM |
About 430g | There’s no difference between S-SR and S-US expect their depth, but S-SR can be compatible with thicker 1.25” mounted filters. |
| Filter Wheel | Filter Supported | Recommended Gears | Back Focus Consumed* | Usable height limit
(need to consider leaving gap space) |
Weight | Note |
| CFW3S-SR CFW3S-US |
7*1.25-inch mounted/31mm unmounted | QHY533M, QHY183M QHY5III Mono Planetary Cams (CFW1.25”Adapter needed） |
20mm (SR)+4mm (Adapter） 15.5mm (SR)+4mm (Adapter） |
QHYCFW3S-US 5.5mm QHYCFW3S-SR 10MM |
About 430g | There’s no difference between S-SR and S-US expect their depth, but S-SR can be compatible with thicker 1.25” mounted filters. |