The Starlight Xpress USB filter wheel is a new product for 2009 and introduces 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 gear motor 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.
Starlight Xpress USB Filter Wheel
The Starlight Xpress USB filter wheel is light and slim, with an easy change system of thumbscrews to swap filter disks without tools. A variety of threaded adaptors is available - T thread, SCT thread and Takahashi 72mm thread at the moment. 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 Starlight Xpress USB filter 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.
Starlight Xpress Product Number: SXUFW-1T
- Additional Information
SKU SX-SXUFW-2T Manufacturer Starlight Xpress Number of Positions 5 Wheel Filter Size 50.8" Round (2") Warranty 1 Year Warranty
- Included Items
- Starlight Xpress USB Filter Wheel
- Questions & Answers
Product QuestionsI am thinking about buying this wheel to use with my modified Nikon D7000 and both of my scopes: astrotech quadruplet refractor 65 and CPC700 xlt.
Would I need any additional equipment to be able to use it/back focus correction?
Filters are baader and orion 2 "Question by: Lunam on Sep 5, 2015 7:10:00 AMIn order to clear the flash mount and rubber grip of your D7000, you will need at least a 5mm T2 thread spacer to put between the filter wheel and the T-ring to prevent it hitting. This gives you a back focus of 55mm (DSLR + T-ring) + 5mm (spacer) + 29mm (filter wheel) - 0.7mm (refraction for Baader filters) = 88.3mm.
With the AT65EDQ, all you need is a 2" to T adapter as that scope has 110mm of back focus, but the flattener is built in and so no special spacer is needed. With the CPC800, it will be tricky. You may need a custom adapter from the 105mm back focus of the f/6.3 reducer to get the distance right.
Please contact us if you have specific questions.Answer by: Chris Hendren (Admin) on Sep 6, 2015 3:56:00 PMThis looks like it would work perfectly with my mono-mod Canon DSLR, with T-threads in and out. 2 quick questions: 1) I assume the ideal position in the optical train is as close as possible to the sensor? And 2) What is the back focus requirement?Question by: cymrych79 on Feb 5, 2015 11:17:25 AMFor an APS-C format mono-mod DSLR, this would be a good fit.
I agree, mounting it as close as possible would be the best choice, though if you put the T-ring right onto the male T output, you might have to adjust it to make sure the camera's prism/flash housing clears the wheel.
The filter wheel with both T-thread end adapters (included) takes up 29mm, and the corrected back focus will be 28.3mm for Baader or 28.6mm for Astronomik filters. A T ring and Canon DSLR take up 55mm, so the absolute minimum back focus used will be 83.3mm.Answer by: Chris (Admin) on Feb 8, 2015 10:46:39 AMCould I buy the 5 position 2 inch MOTORIZED filter wheel without the filters. Just the wheel without the filters. If so what would be the price.I'm also looking to use this with my monochrome 550d. Is it possible to use this along with a Baader MPCC iii ?
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