Filter Wheels from Ian King Imaging

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	ATIK EFW 2 Motorised Filter Wheel
	We’re pleased to introduce a new motorized filter wheel, with multiple filter capability. This new wheel employs exchangeable filter disks, allowing for multiple combinations, and has large 54mm openings on both sides. With these features, the EFW2 can easily support sensors up to full frame (35mm) format. The EFW2 also features a slick design, with a slim and lightweight profile. For example, the distance between any Atik camera and the wheel itself is 0mm, while still maintaining the possibility to rotating the camera to any desired position. Total extra backfocus needed will be only 22mm. Initial filter disk options include 5x50.8mm, 5x2” mounted, 7x36mm and 9x1.25” mounted. Optionally, there will be a hand controller box with push button functionality permitting the use of the wheel without a computer. On the sofware side, the EFW2 will have a ASCOM compliant driver, so that ant compliant software can control it. Additionally, the EFW2 will work with our Artemis Capture software, for easy, simple and efficient operation.

see variations	Technical specs: SPECIFICATIONS Weight Aprox. 400g Voltage requirements 12V DC PC Interface USB

	True Technology Superslim USB Motorised Filter Wheel
	Universal filter wheel for 1.25", 48mm and 50mm/2" unmounted filters through the use of interchangeable internal disks * Instant access to filters/disks without interfering with the telescope, focuser or CCD camera * Intelligent onboard electronics for standalone operation using optional Field Hand Unit if required * Control from MaxIm, AstroArt, CCDSoft, etc, plus stand alone program, via RS232C interface * 5-way disks available for 48mm/2" screw-in filters and 50mm/2" unmounted filters * 8-way disk available for 1.25" screw-in filters * Precision accuracy by the use of infra-red beams and 'V' indent /spring plunger system * All popular filter makes supported eg Astrodon/Schuler, Astronomik, True Tech, Lumicon, etc - the internal clearance between the rotating disk and sidewall of the housing is just over 8mm. This is insufficient for some Baader 1.25" filters, but we can supply our own compatible filter rings and tool to change the glass over to our own (lower profile) filter rings. See below for more details. * Automove to filter No 1 position on reset command from PC (eg after disk change) * Ultra slim design of only 21.5mm thick permits installation in limited back-focus systems * 2" SCT or M54x0.75 threads (mix 'n match) on faceplates for maximum clear aperture, plus wide range of adapters * Wide range of adapters for connection to virtually any telescope or CCD camera or digital SLR * 12v dc operation (12v psu supplied as standard) * Optional field hand unit. * Compact design (6" diameter only ) and lightweight (0.6Kg - 1.3lb) unloaded The SupaSlim USB (SSU), does not replace the original SupaSlim RS232 (now designated SSR), which will continue in production. The principal differences are summarised below. Most operational features are common, including the full range of adapters. * For SupaSlim (R) filter wheel, internal disks, and range of adapters click here * For FW-502 Disk assembly for 50mm and 2" unmounted glass filters click here Differences between SupaSlim USB and SupaSlim RS232C 1. The SSU has only three disk options, for FW-5, FW-502 and FW-8. The SSR has additional options of FW6, FW-6d and FW-7, while stocks last 2. The SSU is suited for direct connection to the USB port of a PC or hub, but within 5 metres cable length unless USB extenders are used. The SSR, operating on RS232 can operate at several tens of metres distance, using a RJ 4-way cable, so is very convenient where users operate from an control room some distance from the observatory 3. The Field Hand Units, now designated FHU-U and FHU-R are physically identical in appearance, but the former operates off 12 volts dc and is connected to the SSU with a RJ4/4 connector (see below), whereas the FHU-R operates off 5 volts dc and is connected to the SS(R) via a RJ6/4 connector 4. The internal disks are of slightly greater diameter than previously, but ALL new production SSU and SSR will handle these disks. SS(R) from serial number 500 onwards will handle all disks. SS(R) with serial numbers lower than 500 will handle all disks except FW-502, and may not take current 5 and 8-way disks depending on tolerancing. The 3.5mm socket is on the inner edge of the electronics box, and the picture at the top of the page shows the USB converter cable plugged into the SSU. INSTALLATION OF USB DRIVER The USB drivers are included on the CD which comes with the SupaSlim Filter Wheel, as is the Stand-alone control software, and user guide. The USB drivers are also available as a zip file download here, including installation instructions. Click here for installation instructions only. SOFTWARE Note that SupaSlim filter wheels can be controlled from programs such as MaxIm CCDSoft and AstroArt, all of which offer camera and autoguide software, and sequenced imaging. For stand-alone operation you can use the True Technology software.

Ł403.59 inc. VAT and delivery	Technical specs:

	Starlight Xpress USB Filter Wheel
	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 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. The 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 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.

See Variations	Technical specs: Available with either 7 position 1.25" Carousel or 5 position 48mm carousel.

	ATIK EFW Filter Wheel with USB Interface
	Based on feedback from our customers, ATIK created the new Atik Electric Filter Wheel, with motorized filter change. It maintains the thickness of the manual counterpart (19.5mm), yet introduces many interesting features: - Closed design: No light enters the wheel, eliminating light leaks in heavily light polluted situations. - Central support: Prevents bending of the wheel walls, when using heavier cameras. - Magnetic sensors: No LEDs inside the wheel and precise positioning of the filters. USB Interface - control with ASCOM using popular applications such as Maxim DL - Hand control: Switch filters without touching the telescope, with innovative user interface! Included are 1.25” adapter, and T-Thread camera adapter, with locking ring. The wheel has the USB computer interface, which will enable computer control of the wheel with either a stand alone interface, or through ASCOM. Power requirements are: 12VDC, 220mA (motor running), 5mA (motor stopped).

Ł350.46 inc. VAT and delivery	Technical specs:

	TrueTech Super Slim Motorised Filter Wheel
	Universal wheel for 1.25" and 48mm/2" filters through the use of interchangeable internal disks It requires only a 12v DC power supply (included) and an RJ11 connection to your PC (RJ11 cable included) for remote operation. A field hand unit is available as an optional extra to provide non PC reliant operation. The filter wheel has female SCT threads on both sides and there are a variety of adaptors available to interface it to most popular makes of telescope and CCD camera. Please specify by email whether you require 1.25" 6 + Dark INternal Wheel 1.25" 8 position internal wheel 48mm 5 posiiton internal wheel

Ł475.00 inc. VAT and delivery	Technical specs: * Instant access to filters/disks without interfering with the telescope, focuser or CCD camera * Intelligent onboard electronics for standalone operation using optional Field Hand Unit if required * Control from MaxIm, AstroArt, CCDSoft, etc, plus stand alone program, via RS232C interface * 4/dark and 5-way disks available for 48mm filters, 6/7/7d/8-way disks for 1.25" filters * Precision accuracy by the use of infra-red beams and 'V' indent /spring plunger system * All popular filter makes supported eg Astrodon/Schuler, Astronomik, True Tech, Lumicon, etc * Automove to filter No 1 position on power on or reset command from PC (eg after disk change) * Ultra slim design of only 21.5mm thick permits installation in limited back-focus systems * 2" SCT threads on faceplates for maximum clear aperture, plus wide range of adapters * Wide range of adapters for connection to virtually any telescope or CCD camera or digital SLR * 15 volt 500mA (unregulated) power supply provides plenty of torque for fully loaded disks * Compact design (6" diameter only ) and lightweight (0.6Kg - 1.3lb) unloaded

	True Technology Modified Filter Wheel Front Plate For Use with 35mm Sensors
	This plate, instead of having a 2" female SCT thread, now has a female M54 x0.75 thread, which is the same thread that is used by Takahashi and others for their 'Wide' T-Rings. Nearly all Takahashi instruments use camera adapters, especially in conjunction with focal reducers and field flatteners, that employ this 54mm thread. A low profile M54 male-male adapter is used to couple the filter wheel to a camera adapter, or directly to the back of an astrograph such as the Epsilon 180. The internal aperture of the M54 adapter is 2", and the considerable increase in field of view can be clearly seen - eg the nylon gear (situated just behind the front panel of the wheel) cannot be seen with the 2" push-fit adapter used in the previous configuration above. The left image shows the chip central in the field of view. The dark ring immediately around the sensor is infact the body of a blank 48mm filter that is screwed into the disk in the filter wheel. In the right hand picture, the photograph is taken from lower down, with the corners just touching clear of the outline of the filter ring. This shows that the front adapter is not now the limiting factor, but the filter itself is operating with its full aperture in the light cone.

TBA	Technical specs:

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