Discover the Latest in Astro Photography: ZWO's Ultra-Compact 5-Position Filter Wheel
ZWO is proud to introduce one of the world's tiniest 5-position electronic filter wheels, setting new standards in the astro photography equipment landscape. This marvel of engineering is not only compact but also incredibly light, tipping the scales at a mere 300 grams.
Crafted from the highest quality aircraft-grade aluminium alloy, the filter wheel's housing undergoes precision CNC machining to ensure durability and performance. At its core lies a stepper motor manufactured by the esteemed Japanese company, NPM, known for its exceptional quality and reliability. This crucial component guarantees smooth and precise filter transitions, making it an indispensable tool for serious astro photographers.
Designed with astro photography enthusiasts in mind, this filter wheel is optimized for use with ZWO ASI1600 cameras, though its compatibility extends far beyond, thanks to its ASCOM support. This allows for seamless integration with various camera models, enhancing its versatility.
The filter wheel accommodates up to five filters in its numbered compartments, compatible with standard 1.25" filter threads. Alternatively, it can hold 31mm unmounted or semi-mounted Astronomik filters, each selectable via imaging software for optimal viewing or imaging. While ZWO currently offers 1.25" filters, plans to introduce 31mm options are underway, promising even greater flexibility.
Installation is a breeze, thanks to the included 1.25” nosepiece adaptor or T-thread options, with a female T-thread present on both sides for added convenience. For those who prefer unfiltered viewing, one compartment can remain empty.
ZWO's commitment to quality is further evident in the filter wheel's construction, supplied with a 1.25” nosepiece and an eyepiece holder featuring a brass compression ring for secure fitting.
Please note, the addition of the filter wheel necessitates 20mm of extra inward focusing distance from your standard focus position, a small adjustment for a significant upgrade in imaging capability.
This filter wheel is an excellent companion for the ASI1600 camera series, particularly the monochrome variants. However, it's essential to ensure your telescope system has sufficient back focus capacity, especially for Newtonian telescopes, which may require modifications for optimal use.
With an optimal distance of 10-12mm between the filter and sensor when paired with the ASI1600, the filter wheel supports up to f/7 - f/8 focal ratios for 1.25" filters and up to f/2 for 31mm filters, minimizing vignetting. ZWO's new RGBL filters are recommended for the ASI1600, designed to achieve a nearly perfect 1:1:1 RGB color balance.
The full ZWO EFWmini set includes everything needed for immediate setup: the EFWmini Body, T2 nosepiece, 1.25″ Holder-T2, T2-T2 adapter, USB2.0 Cable, and the necessary screws and washers for 31mm filters. Specifications highlight the device's efficiency and compatibility, featuring a low power consumption of 150 mA at 5 volts, accommodating 5 x 1.25" or 5 x 31mm filters, and boasting a lightweight design at 300g.
Embrace the future of astro photography with ZWO's cutting-edge electronic filter wheel, designed for precision, versatility, and ease of use.
