Spectrum 4.25" Solar Film Binocular Filter Pair 98-105mm
Spectrum Telescopes
$128.95
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Out of stock
This set of two Spectrum thin-film binocular solar filters enables safe solar observation through binoculars by blocking 99.999% of the sun's visible light. Featuring premium black polymer film 0.002" thick with absorptive filtering material, the filters produce natural yellowish-orange solar views ideal for both visual observing and imaging. Each filter mounts in an aluminum cell secured with a nylon thumb screw and are sized to fit binocular objective tubes with outer diameters between 98mm and 105mm.
Specifications
| Intended Use | Binoculars |
| Film Thickness | 0.002 in |
| Light Transmission | 0.001% |
| Cell Material | Aluminum |
| Filter Type | Thin Polymer Film |
| Filter Count | 2 |
| Tube Outer Diameter Range | 98 mm |
| Cell Inside Diameter | 4.25 in |
| Clear Filter Aperture | 90 mm |
| Filter Rating | ND 5 |
| Model Number | ST425BPP |