Baader UHC-S Nebula Filter

The UHC-S features a wider passband, which allows more light through than a strict narrow-band filter. This makes it a better choice for smaller telescopes or lower magnifications, as it keeps the view brighter and more natural while still effectively boosting contrast on emission nebulae.

Yes, it is designed for both. Its high transmission rate ensures that you get enough light for visual observation without dimming the stars too much, while the contrast enhancement provides cleaner data for long-exposure imaging.

This filter is optimized to transmit the critical emission lines of OIII (500nm), H-Beta (486nm), and H-alpha (656nm). By isolating these specific wavelengths, it helps separate nebulae from the background sky glow.

Absolutely. The spring-loaded cell is designed to hold the glass without putting pressure on it, which prevents the mechanical stress that can warp the glass and degrade your image sharpness at high magnifications.

Yes, it features a standard 2-inch barrel diameter with filter threads, making it compatible with almost any 2-inch eyepiece or camera adapter on the market.

The filter uses a hard ion-beam-deposited coating, which is significantly more scratch-resistant and stable than traditional soft coatings. It is built to withstand regular cleaning and environmental exposure without degrading over time.