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Solar Filters

Items 1 - 25 of 51
Spectrum Full Aperture Glass Solar Filter for 51 mm - 57 mm OD Telescopes

Spectrum Full Aperture Glass Solar Filter for 51 mm - 57 mm OD Telescopes - ST250G

SKU: SPR-ST250G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 2" (51 mm)
  • Filter Maximum Outside Diameter: 2.24" (57 mm)
$76.95
Spectrum Thread-On Solar Film Filter for 37 mm Camera Lens

Spectrum 37 mm Threaded Optical Solar Film Filter - ST-37MM

SKU: SPR-ST-37MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
  • 37 mm threaded cell for compatible camera lenses
$49.95
Spectrum Telescope Thread-On Solar Film Filter for 40.5 mm Camera Lens

Spectrum 40.5 mm Threaded Optical Solar Film Filter - ST-40.5MM

SKU: SPR-ST-40.5MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$39.20
Spectrum Telescope Threaded Optical Solar Film Filter for 43 mm Camera Lens

Spectrum 43 mm Threaded Optical Solar Film Filter - ST-43MM

SKU: SPR-ST-43MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$39.20
Spectrum Telescope Thread-On Solar Film Filter for 46 mm Camera Lens

Spectrum 46 mm Threaded Optical Solar Film Filter - ST-46MM

SKU: SPR-ST-46MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$39.20
Spectrum 49 mm Threaded Camera Solar Film Filter

Spectrum 49 mm Threaded Optical Solar Film Filter - ST-49MM

SKU: SPR-ST-49MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$39.20
Spectrum 52 mm Threaded Camera Solar Film Filter

Spectrum 52 mm Threaded Optical Solar Film Filter - ST-52MM

SKU: SPR-ST-52MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$52.95
Spectrum Telescope Thread-On Solar Film Filter for 55 mm Camera Lenses

Spectrum 55 mm Threaded Optical Solar Film Filter - ST-55MM

SKU: SPR-ST-55MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$52.95
Spectrum 58 mm Thread-On Solar Film Filter

Spectrum 58 mm Threaded Optical Solar Film Filter - ST-58MM

SKU: SPR-ST-58MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$52.95
Spectrum Telescope 62 mm Thread-On Solar Film Filter

Spectrum 62 mm Threaded Optical Solar Film Filter - ST-62MM

SKU: SPR-ST-62MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$55.95
Spectrum Threaded Optical Solar Film Filter - 67 mm

Spectrum 67 mm Threaded Optical Solar Film Filter - ST-67MM

SKU: SPR-ST-67MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$55.95
Spectrum Telescope 72 mm Thread-On Solar Film Filter

Spectrum 72 mm Threaded Optical Solar Film Filter - ST-72MM

SKU: SPR-ST-72MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$69.95
Spectrum Thread-On Optical Solar Film Filter for 77 mm Camera Lens

Spectrum 77 mm Threaded Optical Solar Film Filter - ST-77MM

SKU: SPR-ST-77MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$69.95
Spectrum Telescope 82 mm Thread-On Solar Film Filter

Spectrum 82 mm Threaded Optical Solar Film Filter - ST-82MM

SKU: SPR-ST-82MM
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Mylar Film
$55.20
Spectrum Full Aperture Glass Solar Filter for 41 mm - 48 mm Outside Diameter Telescopes

Spectrum Full Aperture Glass Solar Filter for 41 mm - 48 mm OD Telescopes - ST200G

SKU: SPR-ST200G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 1.61" (41 mm)
  • Filter Maximum Outside Diameter: 1.89" (48 mm)
$76.95
Spectrum Full Aperture Glass Solar Filter for 48 mm - 54 mm OD Telescopes

Spectrum Full Aperture Glass Solar Filter for 48 mm - 54 mm OD Telescopes - ST225G

SKU: SPR-ST225G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 1.89" (48 mm)
  • Filter Maximum Outside Diameter: 2.12" (54 mm)
$76.95
Spectrum Telescope ST275G Full Aperture Glass Solar Filter

Spectrum Full Aperture Glass Solar Filter for 60 mm - 67 mm OD Telescopes - ST275G

SKU: SPR-ST275G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 2.36" (60 mm)
  • Filter Maximum Outside Diameter: 2.63" (67 mm)
$86.95
Spectrum Full Aperture Glass Solar Filter for 67 mm - 73 mm Outside Diameter Optical Tubes

Spectrum Full Aperture Glass Solar Filter for 67 mm - 73 mm OD Telescopes - ST300G

SKU: SPR-ST300G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 2.63" (67 mm)
  • Filter Maximum Outside Diameter: 2.87" (73 mm)
$86.95
Spectrum Telescope ST325G Full Aperture Glass Solar Filter

Spectrum Full Aperture Glass Solar Filter for 73 mm - 79 mm OD Telescopes - ST325G

SKU: SPR-ST325G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 2.87" (73 mm)
  • Filter Maximum Outside Diameter: 3.11" (79 mm)
$86.95
Spectrum Telescope ST350G Full Aperture Glass Solar Filter

Spectrum Full Aperture Glass Solar Filter for 79 mm - 86 mm OD Telescopes - ST350G

SKU: SPR-ST350G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 3.11" (79 mm)
  • Filter Maximum Outside Diameter: 3.38" (86 mm)
$86.95
Spectrum ST375G Full Aperture Glass Solar Filter - 95 mm ID

Spectrum Full Aperture Glass Solar Filter for 86 mm - 92 mm OD Telescopes - ST375G

SKU: SPR-ST375G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 3.38" (86 mm)
  • Filter Maximum Outside Diameter: 3.62" (92 mm)
$86.95
Spectrum 101 mm ID Full Aperture Glass Solar Filter

Spectrum Full Aperture Glass Solar Filter for 92 mm - 98 mm OD Telescopes - ST400G

SKU: SPR-ST400G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 3.62" (92 mm)
  • Filter Maximum Outside Diameter: 3.85" (98 mm)
$86.95
Spectrum ST425G 108 mm ID Full Aperture Glass Solar Filter

Spectrum Full Aperture Glass Solar Filter for 98 mm - 105 mm OD Telescopes - ST425G

SKU: SPR-ST425G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 3.85" (98 mm)
  • Filter Maximum Outside Diameter: 4.13" (105 mm)
$96.95
Spectrum Full Aperture Glass Solar Filter - 114 mm ID

Spectrum Full Aperture Glass Solar Filter for 105 mm - 111 mm OD Telescopes - ST450G

SKU: SPR-ST450G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 4.13" (105 mm)
  • Filter Maximum Outside Diameter: 4.37" (111 mm)
$96.95
Spectrum Telescope Full Aperture Glass Solar Filter for 111 mm - 117 mm Outside Diameter Telescopes

Spectrum Full Aperture Glass Solar Filter for 111 mm - 117 mm OD Telescopes - ST475G

SKU: SPR-ST475G
  • Filtering Wavelength: White Light
  • White Light Solar Filter Material: Glass
  • Minimum Inside Diameter of Filter: 4.37" (111 mm)
  • Filter Maximum Outside Diameter: 4.60" (117 mm)
$96.95

Viewing the Sun is safe and easy with High Point’s vast selection of telescope solar filters. These filters block the Sun’s harmful rays from reaching your eye, allowing you to comfortably view the Sun worry-free. Whether it’s a white light filter or a high-tech H-Alpha filter, these filters will not only protect your eyes but enhance your viewing experience as well. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue.


White light filters are a special type of neutral density filter ideal for newer Sun observers. These filters show the entire visible wavelength spectrum but transmit only 0.001% of the Sun’s light. Many of these filters will show a white-looking Sun, however, there are white light filters that are slightly tinted to show a more orange color, as we normally see the Sun.


Hydrogen-Alpha filters, on the hand, transmit just the H-Alpha wavelength and are considered a narrow-band filter. These show detailed features of the Sun, such as solar flares and sunspots, in a reddish hue. This makes H-Alpha filters a worthy investment for many seasoned Sun observers. Most observers recommend using an H-Alpha filter with a short refractor, either a 3” or 4” will do. As always, make sure your filter is designed for viewing or photographing the Sun!


There are certain precautions you must take in order to safely view the Sun. Before viewing, always inspect your solar filters and do not use if there is any sign of scratches or damage. Older solar viewing filters recommend discarding the product after 3 years, as the filter gradually loses its effectiveness. However, this is not the case for many modern Sun-viewing filters. Always consult an expert to confirm if you can safely use your older solar filters. Rest assured, your new solar filter from High Point Scientific will protect your eyes for an optimal viewing experience.

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