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1/3inch 8mm Security Camera Manual Iris Lens AN0812

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US $11.6932
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This is a manual iris lens. This is an excellent lens for your camera. Complicated mechanisms are built in the compact body through new mechanical artifices. This is your best choice. A must-have device for you. The main road in the remote monitoring and surveillance, this lens can zoom into the eye during the day to see the actual size of distant objects and clarity.

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  • Specifications:

    • Image Format: 1/3"
    • Mount: CS
    • Focal Length: 8mm / 0.16in
    • Aperture: 1.2
    • Angle of View: 36.5°
    • Manipulation Focus: Manual
    • Manipulation Aperture: Manual
    • Size: 28 x 32mm / 0.31 x 1.26in(Dia. x H)
    • The manual iris lens has a standard CS mount
    • Can be used in airports, banks, casinos, business, homes, etc.
    • Provides ultra clear vision for your camera
    • Vivid color image and high resolution


    1/3inch 8mm Security Camera Manual Iris Lens AN0812

    • This camera Zoom Lens is made of quality material

    1/3inch 8mm Security Camera Manual Iris Lens AN0812

    • This is an excellent lens for your camera

    What is the Iris on a Camera Lens?

    • The iris controls the amount of light that passes through the camera lens
    • camera lens image by Richard Seeney from Fotolia.comThe camera iris is the mechanism in the lens that controls the size of the opening through which light will pass to the digital sensor or film. The opening in the iris is known as the aperture. The size of the aperture is stated in f-stops. The iris is one of the principle mechanisms within a camera that controls the amount of light that strikes the sensor or film and is a controlling factor in the focus and exposure of the picture

    Fixed-Aperture Lenses:

    • Some cameras, usually point and shoot, according to the website, have a fixed-aperture lens. This means the iris of the lens is not adjustable but rather fixed in size. The camera adjusts in other ways--like shutter speed or light sensitivity of the sensor-- for changing light conditions

    Adjustable Aperture:

    • The mechanical iris is made up of a number of leaves or pieces that are moved to decrease or increase the size of the opening or the aperture of the lens. The larger the aperture or opening, the smaller the f-stop number used to describe it. An f-stop of 2.8, for example, would have a larger opening in the iris than an f-stop of 5.6

    Lens Sweet Spot:

    • Most lenses have an aperture where the focus and picture quality is optimal. This is often found by trial and error by the photographer, although the website says the sweet spot is often close to f-stop 8 on many lenses

    Automatic Iris Control:

    • Auto-iris cameras continually adjust the aperture of the lens adjusting to changing light conditions automatically. This is more common in video and security cameras than it is in still cameras. The auto-iris feature will make the transitions required during the changing light of a day in a security camera setting, allowing the officer to have an acceptable view of the scene throughout the day

    Fast Lenses:

    • Lenses where the iris opens to a large aperture are said to be fast because they allow more light through the lens and can utilize faster shutter speeds. Fast lenses are often associated with indoor, portrait and sports photography. An iris openings of f-stop 2.4 is considered fast when associated with most modern digital cameras while an f-stop of 1.4 was considered fast for 35 millimeter film cameras

    Package Included:

    • 1 x Manual Iris Lens

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• If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.
• If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Please contact our Live Support to inform that.
• Please contact Live Chat or click here to learn more return policy.

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