Astronomik UHC 2" M48 Filter – Enhance Deep Sky and Planetary Views

The Astronomik UHC filter is perfect for improving your visual astronomy experience.

Unlock more stars and hidden details in deep-sky objects with the Astronomik UHC (Ultra High Contrast) filter. It allows nearly 100% transmission of light from O-III and H-beta wavelengths while blocking out unwanted light pollution and scattered light. This makes gas and planetary nebulae more visible and detailed.

Key Features

The Astronomik UHC filter enhances deep-sky views, making it ideal even for small telescopes. Its high transmission rate ensures successful observations with telescopes starting at 2" (50mm) apertures. Optimized for focal ratios between f/4 and f/15, the filter provides sharp, distortion-free images.

Best Uses

• Visual observation (under dark skies): Great for all telescope sizes, ensuring excellent clarity.
• Visual observation (urban areas): Best suited for telescopes with a 100mm or larger aperture.
• CCD photography: Works well when paired with an additional IR-block filter.
• DSLR photography (astro-modified): Provides near-perfect color balance for deep-sky images.
• Webcam/Video (Deep Sky): Helps reduce light pollution interference in video observations.

Technical Details

• 95% transmission at 486nm (H-beta)
• 95% transmission at 496nm and 501nm (O-III)
• 95% transmission at 656nm (H-alpha)
• Optimized for telescopes with focal ratios from f/10 to f/3.5
• Blocks unwanted wavelengths of light
• Perfect for use with small telescopes
• Durable, scratch-resistant, and resistant to moisture and aging
• Parfocal with other Astronomik filters
• Glass thickness: 1mm
• Comes in a high-quality, protective filter box

The Astronomik UHC filter is ideal for both beginner and experienced astronomers seeking to improve their deep-sky observations. With excellent transmission and premium build quality, it ensures crystal-clear views and is a versatile addition to your telescope setup.