Spectrum Telescopes Solar Filter

This filter has an internal diameter of 6.75 inches. You must measure the outside diameter of your telescope's front optical tube to ensure it is slightly smaller than 6.75 inches so the filter can slip on securely.

Yes, this is a full-aperture glass filter designed specifically for safe solar observation and photography. However, you must always ensure the filter is securely attached and free of any cracks or pinholes before pointing your telescope at the sun.

This filter provides a natural yellow-orange view of the sun. It is excellent for observing sunspots, solar granulation, and the progression of solar eclipses with high clarity.

To protect the optical coating, keep the filter in a clean, dry place when not in use. If the glass surface gets dusty, gently wipe it with a soft, lint-free microfiber cloth designed for optics, but avoid using liquid cleaners.

No, the filter must match your telescope's tube diameter to be safe. If your telescope tube is significantly smaller than 6.75 inches, the filter will not fit securely, and if it is larger, it will not attach at all.