I have an Atik Electronic Filter Wheel for sale.
It's an earlier 5-position model (takes mounted 1.25" screw-in filters), which I believe is upgradeable (USB).
It comes with an after-market adaptor and 1.25" nosepiece which can be used to attach a camera such as those manufactured by DMK.
I also have a 'Power Tank 17' which used to work very nicely with this unit, out in the field. I'll throw this in as a sweetener.
It's a 12V DC, 17Ah unit which has two output sockets. So you could run your filter wheel and something else off it. I'll also throw in three cigarette lighter adaptor cables which have different ends, to give you some options on what you power when using this pack. The pack is rechargeable, and comes with its own adaptor.
The pack has charger cables built into its back, for starting your car in an emergency! (Disclaimer - I've never actually used the pack for this purpose, so make no guarantees of its ability in this regard...
)
I haven't used the battery pack for more than 12 months so I can't speak with any authority as to its current condition.
I'll take $300 for the lot. Pick-up in Sydney.
Thanks for looking