Nikon PK-11A Extension Tube

Nikon 8mm AI Extension Tube PK-11A

Nikon 8mm AI Extension Tube PK-11A

B&H # NIPK11A MFR # 2656
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  • 1Description

The Nikon PK-11A Auto Extension Tube provides 8mm of extension, and can be used with any Nikon SLR lenses longer than 50mm, or with a reversed 50mm lens (using a reverse adapter).

Extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures). They are exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality.

The extension tubes have no optics. They are mounted in between the camera body and lens to create more distance between the lens and film plane. By moving the lens father away from the film or CCD sensor in the camera, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus.

Provides perfect coupling and retains both AI aperture and meter coupling. Does not support AF operation.

UPC: 018208026562
In the Box
Nikon 8mm AI Extension Tube PK-11A
  • 1-Year Warranty
  • Table of Contents
    • 1Description
    Tube Length 0.3" (8mm)
    Weight 1.8 oz (50 g)
    Packaging Info
    Package Weight 0.16 lb
    Box Dimensions (LxWxH) 3.0 x 3.0 x 0.9"
    PK-11A Extension Tube is rated 4.0 out of 5 by 9.
    Rated 5 out of 5 by from Arrived as Expected The product does what Nikon says it does. It provides 8 mm of lens extension. Used with AF, AF-S or AF-I lens is questioned since you lose all auto focus ability. But the use for this is to gain greater magnification, where auto focus is questionable at best. The contruction is at a very high level and is the reason that Nikon gear is selected over third party.
    Date published: 2010-12-19
    Rated 5 out of 5 by from Perfect size I originally bought this ring to use on my 16mm fisheye lens. It works great on that lens but I have found that it also works great on my 50mm lens. It's the perfect size to focus closer but not too close. However on the fisheye lens it's very close. At the minimum focus distance the front lens element almost touches the object that you're shooting. It's very precisely crafted out of all metal.
    Date published: 2013-01-21
    Rated 5 out of 5 by from Usefull with bellows Makes attaching my D300s to the Nikon PB-4 bellows a breeze
    Date published: 2012-08-12
    Rated 1 out of 5 by from Does not work with new digital cameras I did my research before I purchased this product and nowhere did I see it would not work with the new Nikon digital cameras. So I purchased all three of the Nikon extension tubes only to find they would not function with my cameras. I have a Nikon D90 and D7000 camera. I went to the Nikon website and inquired if Nikon was planning to make new tubes that would work with my cameras and they responded we cannot comment on products that are not already on the website.
    Date published: 2011-04-08
    Rated 3 out of 5 by from Just what the doctor ordered.... Great travel accessory, no need to carry the macro lens when you can turn almost any lens into a close up focus macro...
    Date published: 2011-07-04
    Rated 2 out of 5 by from Not Auto... None of the PK series extension tubes are auto much of anything. Not auto-focus, and only really usable with D series lenses (with an aperture ring on the lens barrel.
    Date published: 2011-12-07
    Rated 5 out of 5 by from A great addition to my equipment Product I received was the quality I expected, B & H fills orders in a very timely fashion.
    Date published: 2017-05-13
    Rated 5 out of 5 by from I would recommend this for any photographer. A nice addition to my photography needs
    Date published: 2017-05-10
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