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1/3" 12mm CS CCTV Camera Auto Iris Lens AN1212A

Digg(100) ( 8 Reviews)
       
US $19.39
 
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What you are viewing is a Auto Iris Len.Use this 12mm CS CCTV Camera Auto Iris Len to replace your damaged or broken lens. It features 12mm focal length, supports 1/3" image format, and an aperture of F1.4. The lens suitable for CS mount CCTV cameras. It is a professional lens of expert level. The camera lens is ideal for use in bars, shops, parking lots, houses and warehouse etc.These 12mm Auto Iris Len is ideal for quickly capturing a variety of subjects in different photographic situations without having to change lenses.
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Product Description

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  • Specifications:

    • Varifocal lens, manual focus 
    • Optical glass lens
    • Camera Auto Iris Len is used for standard CS mount CCTV cameras
    • 12mm Auto Iris Len gives you a wide field of view image avaialble with a CS mount lens
    • You can fully enjoy photographing with Auto Iris Len
    • Manually adjustable focal length (zoom) from wide to tele and a manual focus
    • Focal Length: 12mm
    • Image Format: 1/3"
    • Mount: CS
    • Aperture: 1:1.4
    • Focus: Auto
    • Angle of view: 22.1°
    • Iris: DC
    • Dimension: 32 × 35mm / 1.26 x 1.38in (Dia. x H)

    Details:

    1/3

    • This camera lens provides ultra clear vision for your camera

    Auto Iris Len

    12mm Auto Iris Len

    • This lens is being designed for 1/3 inch camera and mount is CS type

    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 photxels.com, 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 commonsensephotography.com 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 12mm Auto Iris Lens

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Average Customer Review:
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A Customer

Bought this item on

04-26-2011

 
love it
00:00:00 04-26-2011
The range is perfect for day to day use because it allows you to get close as well as shoot from clear across the street.
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Tom Cat

Bought this item on

04-13-2011

 
Lens Rocks!
00:00:00 04-13-2011
I am very impressed with this lens. It is wonderfully sharp. Don't let this stop you at all. I would by it all over again for sure.
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Happy Photog

Bought this item on

04-06-2011

 
Great lens for the price
00:00:00 04-06-2011
I was a little hesitant to purchase, but once I mounted, it hasn't come off. Great Lens for the cost.
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Mark Frankenhoff

Bought this item on

03-25-2011

 
Lens
00:00:00 03-25-2011
The lens makes a great addition to my camera set up. The manual-focus feature is rather impressive for the zoom it really helps this amateur take great pictures.
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Bobby Jones

Bought this item on

03-09-2011

 
Amazing!
00:00:00 03-09-2011
i saw it on website and it had really good reviews and was pretty cheap so i got it. after taking it out and using out doors i can say this is one really good lens. it has auto focus built into it and it reaches out really far. its built very solid and looks really nice. but like all lens when you focus it, the lens is kinda loud but that's no biggy.
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Recreational Photog

Bought this item on

02-25-2011

 
Awesome Lens!
00:00:00 02-25-2011
It's a nice compliment to the 6-60mm lens that came with the camera. I really enjoy being able to get close ups on the action shots in the sporting events that I attend.
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Sc Gumede

Bought this item on

02-16-2011

 
Zoom Lens
00:00:00 02-16-2011
I will recommend to anyone, great service overall. sent on time, nothing broken or scratched. i am very happy with service.
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Helen Van Pelt

Bought this item on

02-09-2011

 
Great lens
00:00:00 02-09-2011
I love to shoot pictures of scenery and wild flowers, especially when I make my yearly trek to Colorado. Decided to buy a lens. Easy to change out with my wide angle lens. I'm still learning, but am very satisfied with this purchase. Recommend this product.
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