Thank you for choosing Seymour Solar Filters. Our Helios Solar Glass® and Helios Solar Film filters are designed for safe solar observation and photography when used correctly. Please review the following instructions carefully before use.

Before You Begin

• Verify that your filter size and cell design match your telescope, binocular, or camera lens before removing it from its sealed packaging.
• Inspect the filter for any visible defects before each use. Do not use if scratched, cracked, delaminated, or damaged in any way.
• Never observe the Sun through any optical instrument unless a proper solar filter is securely attached to the front (sky end) of the device.

Mounting Instructions

• Allow your telescope or camera and the solar filter to equalize to outdoor temperature for 10–15 minutes before use.
• Slide the filter gently onto the optical tube until snug, then tighten thumb screws evenly until secure. Do not overtighten.
• If your filter has a single thumb screw, use the included felt pad opposite the screw to ensure even pressure and centering.
• Always confirm the filter is firmly seated and cannot fall or be blown off during use.

Safe Solar Viewing

• Only use Seymour Solar filters on the front of your telescope, binoculars, or camera lens.
• Do not use any filter behind the eyepiece or within the optical path.
• Cover or remove your finder scope unless it is fitted with its own proper solar filter.
• Never leave your optical device unattended while pointed at or near the Sun.

Cleaning & Care

• Clean gently using a soft cloth or tissue with isopropyl alcohol. Avoid excessive rubbing to prevent scratching.
• Do not use abrasive materials or cleaners on glass or film surfaces.
• Store in a cool, dry place in its protective packaging when not in use.

Safety Reminder

Never look directly at the Sun without a securely attached solar filter on the front of your optical device. These filters are not intended for use as handheld or wearable solar eclipse glasses.

Download Full Instructions

Download the Seymour Solar Filter Instruction Sheet (PDF)

Need Help?

Technical Support: +1 (435) 503-9270
Email: info@seymoursolar.com