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  2. Spiratone - Wikipedia

    en.wikipedia.org/wiki/Spiratone

    Spiratone catalog, 1984. Spiratone was a company specializing in low-cost lenses and filters for cameras, lighting, and darkroom equipment.. The company was started by Fred Spira in 1941 in the bathroom of his parents' apartment where he developed film.

  3. Spirit photography - Wikipedia

    en.wikipedia.org/wiki/Spirit_photography

    Another app called Ghost Camera Prank was used by a ghost tour group Facebook page, claiming a client had taken it. Tkay Anderson, co-founder of the Facebook page There's a (ghost) App For That was able to find the specific ghost used in the faked photo. Other clues were that the "ghost" was sharper than the rest of the picture, the ghost was ...

  4. The Comedy Store is rumored to be haunted. So we went ghost ...

    www.aol.com/news/comedy-store-rumored-haunted...

    Along with the aforementioned EMF detector is a highly sensitive audio recorder that picks up electronic voice phenomena (EVP), a camera with a special lens, a temperature-sensitive video device ...

  5. 47th Street Photo - Wikipedia

    en.wikipedia.org/wiki/47th_Street_Photo

    47th Street Photo [1] was a store in New York City described as a pioneer of "the idea of discount consumer electronics retailing in New York." [2] Tourists with a halting English would mistakenly ask for 47th Street Camera. [3] [4] Furthermore, "its reputation spread across the country through a lucrative mail-order business."

  6. Visual field - Wikipedia

    en.wikipedia.org/wiki/Visual_field

    The visual field is measured by perimetry.This may be kinetic, where spots of light are shown on the white interior of a half sphere and slowly moved inwards until the observer sees them, or static, where the light spots are flashed at varying intensities at fixed locations in the sphere until detected by the subject.

  7. Field of view - Wikipedia

    en.wikipedia.org/wiki/Field_of_view

    Field of view is the area of the inspection captured on the camera’s imager. The size of the field of view and the size of the camera’s imager directly affect the image resolution (one determining factor in accuracy). Working distance is the distance between the back of the lens and the target object.

  8. 'Ghost gun' companies fail to end New York attorney ... - AOL

    www.aol.com/news/ghost-gun-companies-fail-end...

    Nine companies that sell unfinished guns without serial numbers, used to make untraceable "ghost guns," must face a lawsuit by New York's Democratic attorney general seeking to halt their business ...

  9. Field lens - Wikipedia

    en.wikipedia.org/wiki/Field_lens

    Optical systems that feature multiple image planes are at risk of a potential problem, which involves the inability on the part of succeeding relay lenses to capture a cone of light from the primary objective lens. [4] The field lens - by behaving as a variably angled lens - solves this problem by bending or refracting the cone of light back ...