ZWO 7 Position EFW Color Filter Wheel for 2 Inch Filters
| Article number: | EFW-7x2 |
| Availability: | In stock |
| Delivery time: | In Stock! |
Product Description
ZWO EFW (5 x 2″or 7 x 2″)
Product weight：EFW 5 x 2″=500g / EFW 7 x 2″=650g
Power supply：USB2.0
Control Mode： ASCOM and SDK
Driver：Free of driver
The filter wheel body is CNC milled from an aircraft graded aluminum block.
Excellent craftsmanship, very thin and light with only 20mm thickness.
The core part of our EFW is the stepper motor which has reliable performance and quality that comes from NPM, Japan.
We have two specifications for EFW2”:
TYPE1: EFW5X2”
TYPE2: EFW7X2”
2″ Thread-In Filters or
50.4mm ±0.5mm Unmounted Filters can be used
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 120mAh @ 5V, which can be operated from the Cooled CCD’s USB2.0 port.
When connected to ASI6200, the distance from the filter to the sensor is about 18mm
Our 2″ RGBL filters are recommended to work with ASI6200MM Pro camera, it will offer nearly 1:1:1 RGB color balance.
Below requirements must be met while using the 2” filter from third-party.
Filters (not including the threads) must be less than 7.5mm in thickness and less than 50.8mm in diameter. Threads must be less than 2.7mm in thickness.
What’s in the box?
1. EFW2*5 or FW2*7 body
2. USB2.0 – 2m cable
3. A bag of M2.5*6 screws (6pcs/ bag)
4. A bag of filter masks for 50mm filters (7pcs/ bag)
5. Phillips screwdriver
6. A bag of M2*4 flat screws (23pcs/ bag)
7. M54M-M48F adapter
8. M54M-M42F adapter
Mechanical drawing
This ZWO EFW filter wheel is electronic, powered using the included 2m USB2.0 cable. Weighing in at only just over 1 lb (500g) and with a 20mm thickness, this filter wheel is a lightweight and effective way of reaching your imaging goals. With 7 positions, this filter can fit 2" threaded filters or 50.4mm (±0.5mm) unmounted filters. The reliable stepper motor comes from NPM, Japan and will provide reliable quality and performance during use.
If you have been looking for a way to switch filters during your astroimaging session without messing with the setup and risking that crisp, clear focus you worked so hard to achieve, this ZWO EFW Filter Wheel is made to aid in switching between filters during sessions, allowing a relatively hands off approach.
When it comes to powering the EFW, there is no need for multiple cables, just the one USB cable provided. The maximum power consumption of this ZWO EFW is approximately 120mAh @ 5V, which can be provided by the ZWO's cooled CCD camera (not included) USB2.0 port. The control modes are ASCOM and SDK.
ZWO's filter wheel body is CNC milled from an aircraft graded aluminum block. The wheel can be rotated either clockwise or counter clockwise, so filter selection is a breeze. If connected to the ASI6200 camera from ZWO, the distance from filter to sensor is about 18mm.