Manufacturer: ASI - ZWO
Product number: ZWOEFW7X2

EUR 614,00


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rating: 5.0 of 5
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ZWO USB Filter Wheel for 7x 2" Filters
ZWO´s latest EFW (Electronic Filter Wheel) provides a larger clear aperture than the previous ones but is still not heavy - only 650 grams!

The filter wheel body is CNC milled from an aircraft graded aluminum block. It features excellent craftsmanship, is very thin and light with only 20 mm thickness.

Motor drive
The core part of the EFW is the stepper motor which has reliable performance and quality that comes from NPM, Japan. The 2" Electronic Filter Wheel can be rotated in both counter clockwise and clockwise direction for filter selection.

There is no need of multiple cables to power this wheel up, just one USB cable does the trick. The maximum power supply of this EFW is approximately 120 mA @ 5 V, which can be operated from the cooled CCD´s USB2.0 port.

Filters
There are two models of the EFW 2":
TYPE1: EFW5X2"
TYPE2: EFW7X2" (this one)


Both accept 2" thread-in filters and 50.4 mm ±0.5 mm unmounted filters.

When connected to ASI6200, the distance from the filter to the sensor is about 18 mm.

ZWO´s 2" RGBL filters are recommended to work with ASI6200MM Pro camera, it will offer nearly 1:1:1 RGB color balance.

Possible configurations for a working distance of 55 mm
There are several possibilities to combine the ASI6200 with a filter changing system and/or off-axis guider. A detailed description of the different variants can be found in this PDF file: ASI6200 Configurations

The third image show the requirements which must be met while using third-party 2" filters.

Camera connection:
The filter wheel attaches directly to ZWO full-frame cameras like the ASI6200, either with or without the camera´s tilting plate.

On ZWO APS-C cameras such as the ASI2600 (and newer ASI071), the filter wheel can also be attached directly, but M54 to T2 adapters are available, linked below.

ZWO cameras with 4/3" or 1" sensors as well as the ASI174MM can be attached via such an adapter or the ZWO-T2-Tilter-2 (optional, see accessory recommendations).

ZWO cameras with smaller sensors can only be connected via the adapter from M54 to T2.

The choice of adaption depends on the required working distance when using correctors, while otherwise you can decide quite flexibly.

Downloads, Drivers:
ZW Optical supplies software and drivers online for free download:
Software and drivers for all ZWO articles
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 (M48x0.75 and M42x0.75 via supplied adapters)
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
FW2*7 body
USB2.0 - 2 m cable
A bag of M2.5*6 screws (6pcs/ bag)
A bag of filter masks for 50 mm filters (7pcs/ bag)
Phillips screwdriver
A bag of M2*4 flat screws (23pcs/ bag)
M54M-M48F-2 adapter
M54M-M48F Adapter
M54M-M42F adapter

Manufacturer / Importeur:Teleskop-Service Ransburg GmbH
Street:Von-Myra-Str. 8
ZIP / City:85599 Parsdorf
Country:Germany
Telefon number:+49 89 99228750
Email:info@teleskop-service.de
Website:www.teleskop-service.de
Safety informations: PDF Download


Recommended accessories




Adaptors

TR2PFM-M54M

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TSM5475-M48

TS-Optics Adapter from M54x0.75 to M48 - Focal Adapter for M54x0.75

TS-Optics Adapter from M54x0.75 to M48 - Focal Adapter for M54x0.75

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TSM68i-M54a

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TSM5475-T2

TS-Optics Adapter from M54x0.75 to T2 - T2 Focal Adapter for M54x0.75

TS-Optics Adapter from M54x0.75 to T2 - T2 Focal Adapter for M54x0.75

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ZWO-M68-ADAPTER

ZWO M68x1 Sensor Tilt Adapter for ASI 6200MM and 6200MC Pro Cameras

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ZWO-T2-Tilter-2

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ZWO-EFW2-EOS

ZWO Canon EOS Lens Adapter for 2" EFW Filter Wheels

ZWO Canon EOS Lens Adapter for 2" EFW Filter Wheels

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ZWO-2-1.25FL

ZWO adapter from 2 inch filter thread to 1.25 inch filter thread

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Reviews

Written by Christian Städele
on 2024-12-05

"Alles gut tut was es soll Schnelle Lieferung "

Written by Michael Keusgen
on 2023-08-09

"Das Filterrad wird in Kombination mit einer ZWO ASI 6200 verwendet, für das es ja auch explizit vorgesehen ist. Das Filterrad macht einen hochwertigen Eindruck. Die Filter wurden bei Inbetriebnahme ohne zusätzliche Kalibrierung direkt richtig positioniert. Sehr leiser und vibrationsfreier Antrieb des Filterrades. Einige kleinere Kritikpunkte: Die Bohrlöcher der Verschraubung Abdeckplatte sind bei der Produktion nicht ausreichend gesäubert worden. Deshalb gab es beim Öffnen der Abdeckplatte reichlich weiße Partikel, was bei einem optischen Gerät natürlich ungünstig ist. Eine präzise Montageanleitung wäre sehr von Vorteil, auch Erklär-Videos gehen nicht unbedingt auf die kritischen Punkte bei der Montage der Kamera ein. Tüftelarbeit: Will man an der ASI 6200 nicht die Tiltplatte entfernen, passt eigentlich keiner der mitgelieferten Gummidichtungen, die ja zwischen Kamera und Filterrad zur optischen Dichtung eingelegt werden sollen. Es bedurfte schon etlicher Montageversuche, bis das Problem durch Bohren neuer Löcher in die mitgelieferte Dichtung gelöst werden konnte. Solche ""Fummeleien"" bei offener Kamera und offenem Filterrad führen auch bei größter Sorgfalt immer zur Kontamination der optischen Oberflächen mit Partikeln, bevor man überhaupt die erste Aufnahme gemacht hat. Hier sollte echt nachgebessert werden. "

Written by Marc Simonetta
on 2023-07-04

"Sehr empfehlenswert"

Written by Gerrit Burggraaf
on 2023-04-12

"Sehr gute Qualität, ideal für mein Foto-Setup."

Written by Marc Simonetta
on 2022-12-29

"Einfach zu montieren, sehr gut."

Written by Wouter Cazaux
on 2022-03-16

"Very silent filter wheel, no vibrations "

Written by Karel Koss
on 2021-11-02

"läuft ohne Probleme (getestet mit NINA)"

Written by Georg Nyman
on 2021-07-02

"Sehr gutes Filterrad - mein drittes, ich habe bereits zwei andere, kleinere. Alles funktioniert und entspricht genau den Angaben auf der Webseite"

Written by Burkhard Kowatsch
on 2020-07-12

Technisch einwandfreies Filterrad. Positioniert sehr exakt und extrem leise.
Mit den im Lieferumfang enthaltenen Adaptern problemlos an Kamera und Reducer adaptierbar.

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