ZWO EFW Mini Electronic Filter Wheel - Five Positions for 1.25" or 31 mm Filters - EFW-MINI

ZWO EFW Mini Electronic Filter Wheel
Five Position, Uses 1.25" or 31mm Filters

The ZWO EFW Mini is one of the smallest color filter wheels around, and it weighs just 300g!  This electronic filter wheel accepts up to five 1.25" or 31mm filters, which are sold separately.

The body of the EFWMini is CNC machined from a block of aircraft-grade aluminum, making it super sturdy and long-lasting.  ZWO designed this EFW to be very thin, in fact, it is only 20mm deep.

Inside the ZWO EFW-Mini is a quality stepper motor made by NPM in Japan.  It is very reliable. The max power consumption of the EFW is about 120ma@5V, allowing you to connect it to the USB2.0 port found on ZWO cooled cameras.  Once connected, make sure to install the ASCOM driver. The USB Cable is included.  The wheel can be rotated either clockwise or counter clockwise for filter selection.

When connected to the ASI1600, the distance between the filters and the sensor is about 10 mm.  That means that 1.25" filters won't vignette the image when used with an f/5 or higher telescope.  31mm filters can be used without vignetting in telescopes as fast as f/2!

What's In The Box:

• EFWmini body
• 1.25" cover
• T2 nosepiece
• 1.25" holder with cover & 2 screws
• T2-T2 male adapter
• A bag of filter masks
• USB2.0 cable 2m long
• Phillips screwdriver
• A bag of M2 Screws