Collection: Telescope Solar Filters – ND5 Helios Glass®, Hyperion Film, Off-Axis

Discover the best ND5 telescope solar filters from Seymour Solar, designed for safe and stunning solar viewing. Crafted with premium Helios Glass®, Hyperion Polymer Film, or specialized Off-Axis glass, our filters block 99.999% of sunlight to protect your eyes and telescope during sunspot tracking or eclipses. Easy to install, they slide onto the optical tube’s sun-facing end and secure with nylon thumb screws. Available in multiple sizes (50mm–100mm) to fit most telescopes.

• Safe Solar Viewing: ISO-certified ND5 rating ensures complete protection for you and your equipment.

• Premium Materials: Choose Helios Glass® for crisp clarity, Hyperion Film for lightweight durability, or Off-Axis Helios Glass® for specialized setups.

• Easy Installation: Slip-on design with thumb screws fits securely on 50mm–100mm apertures.

• Wide Compatibility: Sizes to match most telescopes, from compact to large models.

Not sure which size fits your telescope? Click here to find the perfect filter size. Order now for safe, unforgettable solar observations!

Note: Always install the filter on the sun-facing end of the optical tube, before any sunlight reaches your telescope.