ZWO USB filter wheel for 7x 2" filters
Compact filter wheel for ZWO MONO CCD cameras - perfect for astrophotography with L-RGB filters and nebula filters
♦ About 650 grams of light
♦ High quality CNC design with aluminum housing
♦ Stepper motor for filter change - from NPM
♦ Only 20 mm case thickness
♦ USB powered - low power consumption
♦ Telescope side connection: internal M54x0.75, internal M48x0.75 and internal T2
♦ Fits 7 mounted 2" filters or unmounted 50.4mm filters - no vignetting even with larger sensors or faster telescopes
♦ USB cable, filter masks, thread adapter, screws and a screwdriver included
€599.00
(VAT incl.)
Reference:
ZWOEFW7X2
ZWO USB filter wheel for 7x 2" filters
ZWO's latest EFW (Electronic Filter Wheel) offers a larger free aperture than previous filter wheels, but it's still not heavy - it only weighs 650 grams!
The filter wheel housing is CNC machined from a block of aircraft grade aluminum. It is characterized by excellent workmanship, it is very thin and light with a thickness of only 20mm.
motor drive
At the heart of the EFW is the stepper motor, which comes with reliable performance and quality from NPM, Japan. The 2" power filter wheel can be turned either counterclockwise or clockwise to select the filter.
Multiple cables are not required to power this wheel, a single USB cable will suffice. The maximum current requirement of this EFW is approximately 120mA at 5V, allowing it to be powered from the cooled CCD camera's USB 2.0 port.
filter
There are two variants of the EFW 2:
♦ TYPE1: EFW5X2"
♦ TYPE2: EFW7X2" (this filter wheel)
Both accept 2" threaded filters and unmounted filters with a diameter of 50.4mm ±0.5mm.
When connected to the ASI6200, the filter-to-sensor distance is approximately 18mm.
ZWO's 2" RGBL filters are recommended to work with the ASI6200MM Pro camera, which then offers almost 1:1:1 RGB color balance.
Possible configurations for a working distance of 55 mm
There are several ways to combine the ASI6200 with an off-axis guide and/or filter change system. You can find a detailed description of the different variants in this PDF file: ASI6200 Configurations
The third image shows the requirements that must be met when using 3rd party 2" filters.
Camera connection:
The filter wheel attaches directly to ZWO's full-frame cameras, such as the ASI6200, with or without the camera tilt plate.
The filter wheel can also be attached directly to ZWO-APS-C cameras such as the ASI2600 (and newer ASI071), but M54 to T2 adapters are also available, linked below.
ZWO cameras with 4/3 or 1" sensors, as well as the ASI174MM, can be connected via said adapter or T2-Tilter-2 (optional).
ZWO cameras with smaller sensors can only be connected via the M54 to T2 adapter.
When using correctors, the selection of the fitting depends on the required working distance, while otherwise you can decide quite flexibly.
Downloads, drivers:
ZW Optical provides software and drivers online for free download.
Software and drivers for all ZWO articles
Especificaciones:
| Type: | Motorized filter wheel |
| Filter size: | 2" or 50.4±0.5 mm |
| Filter positions: | 7 |
| Body material: | Aircraft graded aluminum, CNC milled |
| Body thickness: | 20 mm |
| Working distance from filter to sensor: | 18 mm with ASI6200MM Pro camera |
| Telescope connection: | M54x0.75 female |
| Camera connection: | Screws |
| Drive: | Stepper motor from NPM, Japan |
| Control mode: | ASCOM and SDK |
| Electric connection: | USB2.0 |
| Power requirement: | 120 mA @ 5 V |
| Weight: | 650 g |
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