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The SPECTRA™ 8×42 is a slight variation to the PASSION™ ED 8×42 binocular. Both products are built to our high German standards, both providing excellent light transmission, color contrast and image resolution. The difference between SPECTRA™ and ED™ binoculars is the type of glass used for the front objective lens. SPECTRA binoculars’ front objective lens is made with high transmission glass, the PASSION™ ED’s front objective lens is made with premium extra low dispersion ED glass. However, both are optically and technically brilliant.
- High-transmission glass
- Magnesium micro-bridge and body
- GPObright™ lens coating technology
- Lightweight and compact
- Waterproof, fog proof, and shockproof
- Tough aluminium eyecup tubes
- Custom-molded hard case
SPECTRA™ binoculars are available on Costco.com at a special membership price.
GPObright is a proprietary coating process that maximizes light transmission through each surface of an optical element. As light hits an optical surface, normal uncoated high-performance glass can reflect up to 5% of that light, redirecting this light so it does not transmit through the optical system. However, when these high-performance lenses are vacuum-coated with GPObright lens coatings, up to 99.7% of the available light passes through each optical surface. Furthermore, when every surface of the entire optical system is properly coated, total light transmission can reach up to more than 92%, making the optical image of a GPO binocular or riflescope “bright,” even in the lowest light conditions.
Please click on the link to download the manual
GPO – Binoculars
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