Baader AstroSolar telescope solar filter ASTF 200mm

Introducing the Baader AstroSolar Safety Film, renowned as the world's finest solar filter material, now available in a comprehensive range of premium mounted Baader Solar Filters. Engineered with cutting-edge design and construction, these filters are tailored to fit an extensive array of instruments, from telescopes to spotting scopes, camera lenses, and binoculars. Each filter undergoes precise mounting at the factory onto specialized cells, ensuring a stress-free installation that maintains the pristine optical quality of the Baader AstroSolar film.

Unlike many pre-assembled filters that stretch the filter material like a drumhead to mimic glass, our filters prioritize optical integrity over superficial aesthetics. While stretched filters may appear visually appealing, they sacrifice image quality, particularly for high-magnification applications. Baader AstroSolar film is mounted entirely stress-free to perform like a precision optical window, characterized by slight ripples—a hallmark of its quality. When subjected to improper mounting, the film's optical performance deteriorates, resembling common glass filters made from untreated float glass.

With Baader Planetarium AstroSolar™, the Sun's color is faithfully rendered as neutral white, representing its true hue. In contrast, other films and most glass filters produce blurry bluish, yellow-orange, or reddish solar images, compromising spectral accuracy. This is particularly problematic with an orange sun, where observing faculae regions—predominantly visible in the blue spectrum—becomes challenging.

SPECIFICATIONS

Capacity:

Free Transmission (mm): 200

General:

Series: ASTF

Diameter (mm): 290

Weight (g): 207

Type: Solar Filters

Type of Build: White Light