Product Overview

The Baader ASTF AstroSolar Telescope Filter provides safe, high-resolution solar observation and photography capabilities for telescopes and extreme tele-lenses. Optimized for high magnifications, it enables detailed viewing of individual sunspots with clear contrast and sharpness.

Key Features

• Optical Density: OD 5.0 AstroSolar Safety Film mounted in a stress-free, temperature-compensated cell
• Wide Compatibility: Suitable for telescopes and tele-lenses with apertures from 80mm to 280mm
• Temperature-Stable: No astigmatism caused by temperature changes
• Easy Installation: Comes with centering bolts and safety straps for secure and adjustable fitting

In the Box

• ASTF Filter with size options from 80mm to 180mm (larger sizes pending)
• Two sets of centering bolts (10mm and 20mm diameters, each 38mm long)
• Three safety straps with adhesive pads
• Rubber plugs for unused bolt holes
• Mounting instructions

Why Choose Baader AstroSolar Filters?

Baader AstroSolar Filters are designed for professional-quality solar observation. Unlike typical filters, AstroSolar film is mounted stress-free to maintain high precision, ensuring no compromise in image quality. These filters are particularly valuable for high-magnification solar work, maintaining diffraction-limited performance.

Technical Specifications

• Material: Baader AstroSolar Safety Film (OD 5.0)
• Filter Cell: Temperature-compensated with fibre-reinforced plastic rings
• Mount Compatibility: 80mm - 280mm telescope tubes
• Additional Features: IR-rejecting front ring with protective edges

Note on Safety

Important: Read the included instructions carefully before use. Ensure proper mounting and secure all safety straps. Avoid using the filter if damaged, and never look at the sun without appropriate protective equipment.