City Pedia Web Search

  1. Ads

    related to: persol 649 blue lenses for canon binoculars
    • Lens Technology

      Not All Lenses Are Created Equal.

      Japanese Patented Lens Technology.

    • Read Our Reviews

      Unmatched Quality & Service. Read

      What Our Customers Have To Say.

Search results

  1. Results From The WOW.Com Content Network
  2. Binoculars - Wikipedia

    en.wikipedia.org/wiki/Binoculars

    8×42 roof prism binoculars with rainguard and opened tethered lens caps. Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes ( binocular vision) when viewing distant objects.

  3. Persol - Wikipedia

    en.wikipedia.org/wiki/Persol

    Persol is an Italian eyewear brand specializing in the manufacturing of sunglasses and optical frames. It is one of the oldest eyewear companies in the world and is owned by the Luxottica group. The name is derived from the Italian per il sole, meaning "for the sun". Formed in 1917 by Giuseppe Ratti, Persol originally catered to pilots and ...

  4. First World War glass–rubber exchange - Wikipedia

    en.wikipedia.org/wiki/First_World_War_glass...

    An exchange of rubber for optical glass was proposed by Britain and Germany during the First World War. Optical glass was vital to the warfare of this era for binoculars and gunsights and rubber was needed for tyres and communications cables. Britain had sourced the majority of its pre-war optical glass from the German company of Carl Zeiss AG ...

  5. Image-stabilized binoculars - Wikipedia

    en.wikipedia.org/wiki/Image-stabilized_binoculars

    A U.S. Army soldier uses M25 stabilized binoculars. Image-stabilized binoculars are binoculars that have a mechanism for decreasing the apparent motion of the view due to binocular movement. [1] Such binoculars are designed to minimize image shaking in hand-held applications. Higher- power binoculars magnify the image more, but the image shift ...

  6. Crown glass (optics) - Wikipedia

    en.wikipedia.org/wiki/Crown_glass_(optics)

    Crown glass (optics) Crown glass is a type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low dispersion (with Abbe numbers between 50 and 85). Crown glass is produced from alkali-lime silicates containing approximately 10% potassium oxide and is one of the earliest low ...

  7. Image stabilization - Wikipedia

    en.wikipedia.org/wiki/Image_stabilization

    unstabilised. lens-based optical stabilisation. sensor-shift optical stabilisation. digital or electronic stabilisation. Image stabilization ( IS) is a family of techniques that reduce blurring associated with the motion of a camera or other imaging device during exposure . Generally, it compensates for pan and tilt (angular movement ...

  1. Ads

    related to: persol 649 blue lenses for canon binoculars