Unmanned aerial vehicles UAVs deployed on landscape analysis missions carry optical measuring equipment that is required to operate free of chromatic aberration. Researchers have now designed an ...

For hundreds of years, the principle behind the telescope has been as simple as it gets: build a lens or mirror to collect a large amount of light, focus that light onto a detector (like an eye, a ...

Kenko has announced the second version of its 400mm f/8 telephoto mirror lens. The new version features optical tweaks to improve image quality, compared to the previous model (which came out in July ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › Believe it. Adoram’s ProOptic 500mm f/6.3 ($160, direct; adorama.com) shares all the ...