BAADER ASBF 70mm Solar Filter for Binoculars & Camera Lenses

The Baader ASBF 70mm is a high-quality solar filter specifically designed for safe visual observation and solar imaging in white light using binoculars or camera lenses. It utilizes the original Baader AstroSolar Safety Film OD 5.0, which ensures high-contrast, neutral-color, and diffraction-limited solar performance.

Optical Features

• Original AstroSolar Safety Film OD 5.0, mounted completely stress-free to preserve its high optical performance.

• Certified to attenuate 99.999% of sunlight, allowing observation of sunspots, granulation, and faculae with exceptional clarity.

• Provides a white-light (integral light) view of the solar disk, ideal for high-resolution imaging and visual use.

Optimized Binocular Use

The ASBF design features a flat edge on the cell, allowing close mounting even on binoculars with a narrow central bridge. Two filters are required for binocular use (price per single unit). The adjustable centering bolt system ensures secure, repeatable, and tool-free installation.

Included in the Box

• 1x ASBF 70 mm solar filter

• 3x centering bolts (13 mm diameter, 24 mm height)

• 3x safety straps with adhesive pads

• Illustrated 32-page user manual

Mounting and Safety Features

• Brass-threaded centering bolts with rubberized grip faces prevent slipping and damage.

• Non-rotating aluminum sliders with precision index marks for repeatable alignment.

• Light-blocking black washers included to prevent light leakage at bolt slots.

• Tool-free setup with optional Phillips screw tightening.

• Printed safety warnings on the filter cell.

• Delivered in a rigid cardboard box for safe transportation.

The Baader ASBF 70mm is the ideal solution for safe and professional white-light solar observation with mid-size binoculars or photo lenses, delivering top-level optical performance and mechanical reliability.