Description
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Super-Slim Off-Axis guide head add-on! This useful filter wheel accessory makes accurate, flexure-free guiding easy to achieve. The extremely slim assembly screws directly to the wheel face and adds only 13mm to the back focal distance of the wheel. The USB filter wheel was first introduced in 2009 and adds many new features to a useful imaging accessory. It is unique in that it does not require a separate power supply when used with USB control – the high performance DC gearmotor runs entirely from the USB supply and consumes less than 100mA. It is also capable of operation from a serial input, or from a switched hand controller, both of which power the wheel from a small dry battery. |
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The wheel is light and slim, with an easy change system of thumbscrews to swap filter disks without tools. A wide variety of threaded adaptors is available – T thread and SCT thread are commonly used, but you can see the full set at the foot of this page. The adaptors can be swapped by using a small screwdriver to release three stainless screws and lifting off the adaptor flange. Each flange can be rotated to any angle before locking down, so that you can orient the wheel and camera into the optimum position.
The wheel is quiet in operation and the Hall-Effect 3 bit encoded positioning gives absolute filter locations (not serially sequential) so you can easily swap between any filters without accidentally losing the wheel position.
The 10 x 8mm prism fully illuminates a Lodestar or EX guider CCD and the pick-off axis may be adjusted to optimise the guide image quality.
An alternative filter wheel face plate for direct attachment of our H18 and M26 cameras is also available (not suitable for other SX cameras as the OAG cannot achieve focus for these, without the camera adaptor in place)
A general view of the filter wheel, fitted with T thread adaptors and a 48mm filter disk
An internal view with the cover removed, showing the 5 x 48mm filter disk with one filter in place. The USB connector is visible at lower left and the Serial/Manual connector is at the lower right.
The 7 x 32.5mm filter disk.
36mm and 50mm unmounted filter carousels
NEW – the original 50mm version has now been adjusted to allow 50.8mm (2 inch) unmounted filters to be fitted.
Cross-sectional dimensioned views of the wheel when fitted with T thread and SCT adaptors
| USB Filter Wheel | Description |
| SXUFW-1T | USB Filter wheel with internal 7 position 1.25″ Filter carousel. Connections T-Thread female i/p & male o/p. |
| SXUFW-1S | USB Filter wheel with internal 7 position 1.25″ Filter carousel. Connections SCT female i/p & T male o/p. |
| SXUFW-2T | USB Filter Wheel with 5 position 2″ filter carousel. Connections T-Thread female i/p & male o/p. |
| SXUFW-2S | USB Filter Wheel with 5 position 2″ filter carousel. Connections SCT female i/p & T male o/p. |
| SXUFW-UM36T | USB Filter Wheel with 7 position 36mm unmounted filter carousel. Connections T-Thread female i/p & male o/p. |
| SXUFW-UM36S | USB Filter Wheel with 7 position 36mm unmounted filter carousel. Connections SCT female i/p & T male o/p. |
| SXUFW-UM50.8TAK | USB Filter Wheel with 5 position 50.8mm unmounted filter carousel. Connections SCT female i/p & 72mm TAK male o/p. |
| SXUFW-UM50.8S | USB Filter Wheel with 5 position 50.8mm unmounted filter carousel. Connections SCT female i/p & T male o/p. |
Now available: CCDSoft plug-in for the SX filter wheel.
Here is the latest version of the filter wheel control program. It is now fully compatible with Windows Vista and Windows 7
| Size | SXUFW-1T, SXUFW-1S, SXUFW-2T, SXUFW-2S, SXUFW-UM36T, SXUFW-UM36S, SXUFW-UM50.8TAK, SXUFW-UM50.8S |
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Fast Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse personnel will pack each item according to our strict requirements. Before they are shipped, your goods will be thoroughly examined and secured. Everyday, we send to thousands of clients in different countries. This is a sign of our determination to become the largest online retailer globally. The warehouses and centers for distribution are in Europe, as well as the USA.
Note that orders containing more than one item will be processed according to the specific item.
Before shipping before shipping, we'll inspect thoroughly the items you've purchased. Most orders are delivered within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
The inventory is always changing and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. Therefore, the actual inventory could change at any time. It's possible that your order will be unable to fill when you have placed the order.
Our policy is valid for 30 days. If 30 days have gone without a trace since the purchase and we are unable to offer an exchange or refund.
In order for your item to be returned it must be in its original packaging, unopened and in the same condition as when you received it in. It must also be in its original packaging.
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