Astronomik UHC Filter – Ultra High Contrast for Deep-Sky Observing Fast UK Shipping If you do an exposure

If you do an exposure of 30 seconds without any filters from a light-polluted urban observing site

2µV@12dB SINAD

Whether it's optimizing restaurant operations

1x ST4 Cable for autoguiding

Aluminum Frame

Astronomik UHC Filter – Ultra High Contrast for Deep-Sky Observing Fast UK Shipping If you do an exposureThe Astronomik UHC is THE filter for visual observing. You will enjoy using your Astronomik UHC filter because you will see more stars and more details in deep sky objects compared to filters from other manufacturers. The Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O III and H beta lines. Though the second window for the H alpha line is not intended for visual observing, it is important