Astronomik UHC Clip-Filter for Sony Alpha 7 – High Contrast Viewing Retekess TD162 Complete blocking of unwanted wavelengths

Complete blocking of unwanted wavelengths

Support secondary development

The green FMC coating enhances light transmission

So there is no need to worry about battery life during usage

5) size fits perfectly in filter wheels of leading brands such as ZWO

Astronomik UHC Clip-Filter for Sony Alpha 7 – High Contrast Viewing Retekess TD162 Complete blocking of unwanted wavelengthsAstronomik UHC Clip Filter Sony alpha 7 The Astronomik UHC is the ideal filter for visual observing. With the Astronomik UHC filter, you will enjoy more stars and finer details in deep sky objects compared to filters from other manufacturers. The UHC (Ultra High Contrast) filter allows nearly 100% transmission of light from the O III and H beta lines. Though the H alpha window is primarily for electronic devices, it still blocks scattered light and