Baader ASTF 80 mm OD 5.0 – Solar Filter for Telescope

Baader ASTF 80 mm OD 5.0 – Solar Filter for Telescope

DESCRIPTION

The Baader ASTF 80 mm OD 5.0 filter allows safe solar observation through a telescope. It uses AstroSolar OD 5.0 film mounted without tension inside a temperature-compensated cell. This keeps the film’s optical quality intact. The aluminum frame is reinforced with a plastic support for safe and stable use. Three centering bolts, safety straps and caps are included to ensure reliable attachment to the tube.

TECHNICAL SPECIFICATIONS

• Aperture: 80 mm
• Outer cell diameter: 170 mm
• Weight: 139 g
• Filter material: AstroSolar OD 5.0
• Mounting type: 3 centering bolts (10 mm and 20 mm)
• Secondary securing: 3 safety straps
• Stress-free mounting, temperature-compensated cell
• Materials: aluminum, reinforced plastic
• External fit range with 10 mm bolts: 110 – 140 mm
• Internal fit range with 10 mm bolts: 130 – 160 mm
• External fit range with 20 mm bolts: 100 – 130 mm
• Internal fit range with 20 mm bolts: 140 – 170 mm
• Accessories: caps, bolts, washers, straps, instructions