Holiday Special Daystar Erf 130mm With 170mm Cap # E-170n130 Tool [3AldSOxm]

Daystar ERF 130mm Refractor Filter with Cap

The Daystar ERF 130mm with 170mm Cap is a premium solar filter designed for refractor telescopes. This specialized filter is crafted to reduce heat load and enhance the viewing experience by blocking harmful UV and IR radiation while allowing visible light to pass through. The ERF's precision cell ensures a secure fit, while the included 170mm inside diameter cap guarantees a snug seal, protecting your telescope's optical components from damage.

Key Features and Specifications

The Daystar ERF 130mm filter is a research-grade, made-to-order product, precision-machined in the USA. Its 130mm clear aperture provides optimal performance with telescopes operating at f/30 or slower. Key features include:

• 130mm clear aperture housed in a precision cell for secure fit.
• 170mm inside diameter cap for a secure fit on your telescope.
• Protects optical components by blocking harmful UV and IR radiation.
• Passes visible light for safe and effective solar viewing.
• Acts as an aperture mask to optimize light path.

With this filter, you can easily configure an f/30 setup using a Barlow lens for higher resolution or larger apertures.

Practical Uses and Target Audience

The Daystar ERF 130mm with 170mm Cap is ideal for astronomers and hobbyists looking to enhance their solar viewing experience. By blocking harmful radiation, this filter ensures safe and comfortable observation of the sun. Its versatile design allows for use with various refractor telescopes, making it a valuable addition to any astronomy enthusiast's collection. Whether you're a beginner or an experienced observer, the Daystar ERF 130mm with 170mm Cap is a must-have for anyone interested in solar astronomy.