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Kenko

Kenko DG Auto Extension Tube Set for the Nikon AF Mount.

SKU: KNAETSDNKAF MFR: AEXTUBEDGN
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$139.00 $6 per week
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About this item

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.

The KENKO AUTO EXTENSION TUBE SET contains three tubes of different length, a 12 mm, 20 mm, and 36 mm, which can be used individually or in any combination to obtain the desired magnification. Kenko also makes a UNITUBE 12 mm or 25 mm which can be purchased individually.

Kenko's Auto Focus extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with most Nikon lenses given there is enough light to activate the cameras AF system properly.

Please Note;
1. When using extension tubes the lens will not focus to infinity. The focus range will be greatly limited to a very close focusing distance.
2. There is light fall off when using any extension tube, sometimes the equivalent of 3 f-stops of light is lost when using multiple extension tubes together. This light lost can affect the camera's ability to auto focus. Manual focusing is recommended should the lens begin to "hunt" (not lock onto the subject).
3. Nikon "D" information is not transmitted because the lens is focusing closer than its programmed to focus.
4. Kenko Auto Extension Tubes are not auto focus compatible with Nikon AF-s (Silent Wave) lenses, manual focusing is required with these lenses.

DG Series
New DG Series have upgraded "Gated-Array" circuitry to work better with the digital SLR's and some of the the new digital only lenses. They still work the same with film SLR Cameras and lenses as well

Summary of Customer Reviews

Customers most agreed on the following attributes:
Pros:
Easy to use (35) , Lightweight (35) , Durable (22) , Reliable (18) , Improves function (5) , Versatile (5) , Great features (3) , Great picture quality (3) , Simple controls (3)
Best Uses:
Macro photography (40) , Travel (5) , Home (4) , Outdoor events / games (3)
Reviewer Profile:
Enthusiast (39) , Semi-professional (4) , Professional (3) , Casual user (2) , Getting started (1) , Photo enthusiast (1) , Pro photographer (1) , Semi-pro photographer (1)

Technical Specs

Diaphragm Perfect coupling
TTL/EE metering Perfect coupling
Diameter 62mm approx.
Length and Weight (approx.) 36mm/125g, 20mm/85g, 12mm/60g
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