Login

Country

Cart

Your cart is empty
White-light view of the Sun through a solar filter.

Most people never stop to look at the Sun.

We think that's a shame.

White-light solar filters for telescopes, cameras, binoculars, and spotting scopes.

The Sun is worth your attention.

FIND YOUR FIT

Find the right solar filter for your equipment

Camera lens with a known Ø thread size? Shop threaded camera filters by exact size. For slip-on camera filters, telescopes, spotting scopes, and binoculars, search by make and model or enter the outside diameter of the front mounting surface below.

Need to measure? Use the “Learn how to measure” link beside the measurement field so you measure the outside diameter (OD), not the aperture or objective size.

Sunspots visible on the Sun through a white-light solar filter.

You don’t see this every day.

Sometimes it’s a sunspot group slowly drifting across the Sun.
Sometimes it’s quiet — until it isn’t.

We’ve seen it a lot.
And we still end up saying: okay, check this out.

Done right, it’s safe.

Looking at the Sun isn’t something to take lightly.

That’s why Seymour Solar filters are designed for secure, front-mounted use and carefully inspected before they ever ship.

If you’re not sure what you need, we’ll help you get it right.

Eclipses are only the beginning.

The same filter you use for an eclipse lets you observe sunspots, transits, and the Sun’s changing surface over time.

Once you have the right filter, you’ll find reasons to use it long after the big event has passed.

Seymour Solar front-mounted solar filter installed on a telescope.

Designed for real-world solar observing

Seymour Solar specializes in white-light solar filters for front-mounted use on telescopes, cameras, binoculars, and spotting scopes. Choose Helios Glass or Hyperion Thin-Film based on how you observe, then use the correct mounting method and size for your equipment.

We focus on careful construction, inspection, and clear guidance so you know what to expect before you point your equipment at the Sun.

Find the right filter

Shop the Seymour Solar product families

Helios Glass Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory
Helios Glass Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory

Durable glass optics · Long-term use

Sale priceFrom $96.95
Hyperion Thin-Film Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory
Hyperion Thin-Film Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory

Lightweight thin-film · Great value

Sale priceFrom $46.95
Shop Telescope Filters
Seymour Solar Helios Glass Threaded Camera Filter – Front-Mounted Solar Photography Accessory
Seymour Solar Helios Glass Threaded Camera Filter – Front-Mounted Solar Photography Accessory

Durable glass optics · Long-term use

Sale priceFrom $129.95
Helios Glass Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory
Helios Glass Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory

Durable glass optics · Long-term use

Sale priceFrom $96.95
Seymour Solar Hyperion Thin-Film Threaded Camera Filter – Front-Mounted Solar Photography Accessory
Seymour Solar Hyperion Thin-Film Threaded Camera Filter – Front-Mounted Solar Photography Accessory

Lightweight thin-film · Great value

Sale priceFrom $59.95
Hyperion Thin-Film Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory
Hyperion Thin-Film Slip-On Solar Filter – Telescope, Spotting Scope, and Camera Lens Accessory

Lightweight thin-film · Great value

Sale priceFrom $46.95
Shop Camera Filters
Helios Glass binocular solar filters for front-mounted solar observing
Helios Glass Binocular Solar Filter Kit – Slip-On Front-Mounted Solar Imaging Accessory (Pair)

Durable glass optics · Long-term use

Sale priceFrom $158.95
Hyperion Thin-Film Binocular Solar Filter Kit – Slip-On Front-Mounted Solar Imaging Accessory (Pair)
Hyperion Thin-Film Binocular Solar Filter Kit – Slip-On Front-Mounted Solar Imaging Accessory (Pair)

Lightweight thin-film · Great value

Sale priceFrom $88.95
Shop Binocular Filters
Hyperion ND5 White Light Solar Film Sheets — DIY Solar Filter Material (Viewing & Photography)
Hyperion ND5 White Light Solar Film Sheets — DIY Solar Filter Material (Viewing & Photography) Sale priceFrom $8.89
Shop Film Sheets

Practical guidance before you choose or observe.

Learn before you observe

Solar Safety

Inspect, mount, and use a front-mounted solar filter correctly.

Read Solar Safety

Sizing & Fit

Measure the right surface and choose the correct attachment method.

View Sizing Guide

Glass vs Film

Compare Helios Glass and Hyperion Thin-Film for your observing needs.

Compare Materials

Solar Photography

Understand front-mounted filtering and camera-specific setup basics.

Learn Solar Photography

Focused on the Sun since 2007

Seymour Solar was founded in 2007 by astronomer Dr. Stephen Seymour. Today, from Avon, North Carolina, we design and manufacture ND5 white-light solar filters for telescopes, camera lenses, and binoculars, with each filter assembled and inspected in-house.

Our Story

Support you can rely on

Lifetime Limited Warranty
Coverage against manufacturing defects in materials or workmanship under normal use.

30-Day Returns
Eligible unused products may be returned when requested within 30 days of delivery.

Need help with fit?
Use our sizing guidance or contact Seymour Solar before ordering.

Warranty & Returns