Spectrum Solar Filter

This filter is designed for telescope tubes with an outside diameter between 137 mm and 143 mm. Measure the outside diameter of your telescope's front cell carefully before purchasing to ensure a secure, safe fit.

This filter renders the sun in a natural, pleasant yellowish-orange hue, which is the standard appearance for high-quality glass solar filters.

Yes. This is a full-aperture solar filter specifically engineered to block the vast majority of sunlight, making it safe for direct solar observation when properly attached to your telescope.

A full-aperture filter uses the entire opening of your telescope, which helps maximize resolution and minimize the impact of atmospheric turbulence compared to smaller, off-axis apertures.

The filter comes with a dedicated foam-lined storage box. Always store it in this box to protect the glass surface from scratches and accidental damage when not in use.

Yes, you can use this filter for solar photography. Just ensure the filter is securely attached to the front of your telescope and that you are using appropriate camera settings for solar imaging.