Product Description

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's Auto Focus extension tubes are designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure.

Product Details

• Brand: Kenko
• Model: Auto Extension Tube Set
• Dimensions: .55 pounds

Customer Reviews

Extension tubes
I have used these extension tubes now for over a month and I love them. I have to figure out which one for the different lenses I have but they work great.

Great for Macro, making a little cheap...
This set is great to work Macro with many lens if not all. Depending on the lens that are used on, one can use only one 12mm tube (wide angle) or the three stacked togheter with a 200mm lens. In any case they work perfect for achieveng really close focusing distances and very close to 1:1 magnification. A quite important problem is, however, the very narrow depth of field. This is something that some people may want to have a look at before buying this set since macro lens achieve a little longer depth of field I beleive. About the making of the set I feel they are somewhat cheap, yet it doesnt feel like they are going to break. Apart form the 12mm tube, the tubes feel solid, work well electronically, very light and assemble on and off easily (yet when they are assembled a little play from the tube to the lens can be noticed). The 12mm tube is difficul to put and remove from lens or the other tubes, it requires to put some force to assembly it on the lens (or to assemble the lens on it). This one I dont think I'll be using much couse im kinda nervous that it may damage the mounting of the lens. Still if I have to I will put it on since is not catastrophic...

This made me think about the canon tubes and that I wouldnt be having this kind of trouble with'em. Maybe the lower cost did mean lower construction quality...

Great alternative to buying a high priced Macro lens...
I've had these tubes for a few weeks now and am very happy with it...I really wanted to get the Canon 100 2.8 Macro but since I was new to Macro, I thought this might be the less expensive way to get me started into Macro..

What I really don't like about these tubes is the focusing....I've been having a focusing problem, but perhaps thats my lack of expertise. Another thing I don't like is the complete frame is never sharp. Just the center is sharp. Yes, I do love the "bokeh" but, I'd really love to get more of the shot into focus. Again, perhaps thats my inexperience, but I really don't think so. But, yes, I'd emphatically recommend these Kenko extension tubes...