ZWO 5-Position Mini EFW Electronic Filter Wheel for 1.25" or 31mm Filters - EFWMINI

No Ratings Yet

Write a Review


  • Your Price:
  • $199.00
  • + FREE Shipping

Leave us your email, and we’ll let you know when this item is back in stock.

  • The ZWO Mini EFW Electronic Filter Wheel is capable of holding up to five round 1.25" or 31mm filters
  • Compact enough to fit in your hand, the ZWO EFWMini Electronic Filter Wheel is only 20mm thick and weighs just 10.58 ounces
  • Features a body constructed of CNC-machined black anodized aircraft-grade aluminum, and a stepper motor made by NPM in Japan
  • Works in conjunction with ASI1600 cameras for non-vignetted results with 1.25" filters and up to f/5 fast systems
Questions? Let our experts help!
  • Description

    ZWO Mini EFW Electronic Filter Wheel

    ZWO's Mini Electronic Filter Wheel is surprisingly compact and lightweight! Weighing only 10.58 ounces (300g), this filter wheel is small enough to go with you anywhere and is ultra thin at only .79”, or 20mm.

    The ZWO EFWMini is small enough to fit in your hand, but it is rugged. The black anodized body is CNC machined from a block of aircraft-grade aluminum, and the stepper motor is made in Japan by NPM.

    The five-position color filter wheel, which can rotate in either direction, accepts either 1.25” or 31mm filters, which are sold separately. With the ASI1600 camera installed, non-vignetted results are achievable with 1.25” filters and systems as fast as f/5. 31mm filters would be your choice if you have a fast system between f/4.9 and f/2.

    To use the ZWO EFW Mini filter wheel, install the ASCOM driver and plug the included USB2.0 cable into the USB port on your camera. Alternately, you can connect the EFWMini via the USB cable directly to your computer.

    Other included accessories are a T2 nosepiece, a Holder-T2 and T2-T2 Adapter, and a 5-position filter carousel that will accept 1.25” mounted filters or 31mm unmounted filters that can be held in place with M2 retaining screws.

    The ASCOM driver is compatible with a wide range of control software.




    Supplier SKU


    What's Included

    • ZWO EFWMini Body

    • 5-Position Carousel for 1.25" or 31mm filters

    • USB2.0 Cable

    • T2 Nosepiece

    • 1.25" Holder

    • T2-T2 Adapter

    • Bag of Spacers

    • M2 Retaining Screws and Washers

    • Phillips Screwdriver

  • Dimensions & Specifications

    • Type of Filter Accessory: Filter Wheel
    • Number of Positions: 5
    • Carousel Size: 1.25"
    • Thickness: 20mm
    • Weight: 10.58 oz.

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    2 years

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

  • Stars


    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars

    Most Helpful Reviews

    Most Critical Reviews

    All Reviews

    Displaying Reviews 1-10 of