Astrozap Baader Film Solar Filter

An off-axis design uses a smaller aperture located to the side of the telescope's main opening rather than covering the entire front. This configuration effectively reduces the telescope's aperture, which can improve image contrast and stability by minimizing the impact of atmospheric turbulence.

This filter is designed to fit telescope outer diameters ranging from 15.6 to 15.9 inches. Before purchasing, measure the outer diameter of your telescope's front cell to ensure it falls within this specific range.

Baader Film is widely regarded for its optical neutrality, providing a crisp, high-contrast white light view of the sun. It is excellent for observing sunspots, granulation, and solar limb darkening without introducing artificial color tints.

Yes, this filter is specifically engineered for safe solar viewing. However, always inspect the film surface for any pinholes, tears, or scratches before every single use; if the material is damaged, do not use it.

To preserve the integrity of the Baader Film, store the filter in a clean, dry, and protected case when not in use to prevent punctures. Avoid touching the film surface directly, as oils from your skin can degrade the material over time.