Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses
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	Brand	Sigma
	Type	Electronics
	List Price	$380.00
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	Our Price	$299.00
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	Lowest New Price	$299.00
	Lowest Used Price	$249.00
Categories
All Accessories  Lens Adapters & Converters  Teleconverter  Sigma  Digital SLRs  Lenses  All Digital Camera Lenses
Features
Teleconverter lens for Nikon SLR cameras Enhances the focal length by the power of 2 Multi-layer lens coating and lens design decreases flare and ghosting Consists of lens case
Similar products
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Description
*THE DG MODEL IS HERE* The new dedicated 2x APO Teleconverter features a 6 element/5 group optical design, and it is specifically intended for use together with longer telephoto and telezoom lenses.The high performance optical characteristics of these teleconverters preserve the optical performance of the compatible lenses together with which they can be used.Utilizing 10-pin electrical interfaces, there is no loss of autofocusing speed when these teleconverters are used together with compatible H.S.M. type lenses for Canon, Sigma, and now existing Nikon AF cameras (except N60/F60 models). They are ideally suited for use together with the 70-200mm F2.8 APO EX HSM zoom lens; getting normal exposure and autofocus function, while maintaining its high optical performance.
The Sigma APO Teleconverter 2x EX DG for Nikon Digital SLR Cameras is a dedicated APO teleconverter this can be mounted between pick and choose lenses and the camera body to enhance the focal length by the power of 2. The multi-layer coating decreases flare and ghosting, which is a common problem together with digital cameras. The lens in addition proposes maximum magnification not including any variation in the minimum focusing distance. Compact and lightweight, this teleconverter can transform your lenses into longer focal-length lenses, so you don't have to do a lot of unnecessary footwork. A case for the lens is integrated.
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Customer Reviews
Failed while using the new Sigma 150-500mm for Nikon   2010-07-17
By H. Reicher (Steeler Country)
Just for verification: This is for the "Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses." I was really excited. I expected the impossible, I expected it to work. If you don't expect anything you won't be disappointed. Whoops! Out of the box the unit connected snugly with the recommended Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras (this 150-500mm works fantastic alone.) I then attempted to start shoot a housing development 1.5 miles across the valley and visibility was 10. I was at the top of a small mountain and so was this subject across the valley. I start snapping. I heard the auto focus motor of the parent lens churning in an aggravated manor. The motor then stopped and the picture was automatically taken. In the site and picture results were no houses; it was a white blur. I then tried with other items all over the spectrum of cameras listed range. The pictures ranged from really pathetic to unidentifiable. The camera thought the subjects were in focus when they were not even close. At first I thought there was a problem with the Sigma. Next I tried a Nikon 300mm lens with the converter and I had the same problem. I then tried the Sigma 150-500mm alone and the shots were amazing. They were money shots and on the fly. I then put the Sigma APO Teleconverter back on with the Sigma 150-500mm. I switched to manual and twisted the pictures into focus. They were only ok at 1.5 miles from the subject. I had similar results from subjects at 10 feet. I am not interested at ok and I wanted auto focus. Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras
Does the trick   2010-07-08
By K. DuBois (Los Angeles, CA)
Does what it's supposed to do, but with the negative aspects inherent in any teleconverter.
Additional considerations   2009-10-24
By Allen E. Thomas (upstate NY)
Perhaps I should not have been ... but I was surprised by the things I had not thought of before buying this lens extender. The first is that it made my autofocus shock reduction camera into basically a manual camera. Perhaps I had not attached the tele-extender properly to my camera, (several times under different conditions). But I could not get the autofocus to work. There's also another consideration: when you increase the telephoto power, you reduce the area of the objects you are imaging. You are also increasing the speed of the subject in relationship to the frame. When I took a picture of a goose in the back yard, the goose ended up walking partially out of the frame by the end of the extended exposure. When I took a (tripoded) picture of Jupiter, the planet had moved away from the focus point - blurring the image and giving it an extended oval shape. Although I was able to distinguish the moons of Jupiter, four that night, they too were blurred. In both cases the tele-extender worked correctly - as far as I could tell. And in itself it gave clear images. However, I may have been able to gain a better final image by cropping and editing an original from the standard telephoto lens. I haven't abandoned the tele-extender. I'm experimenting with it to find the appropriate application. Al.
Not worth the money, buy a better lens instead   2009-09-28
By P. Minton (S.R., CA)
I spent a day photographing a sailboat race from the shore, and thought this would be an ideal time for the converter. I was using a Sigma 50-500, so with the teleconverter, I thought I was set. When I got home, I found the photos were never sharp or crisp, and just slightly blurry when zoomed in. The next night I used the same setup to take shots of the moon, with the same results. I took off the teleconverter, and I got sharper photos. If you need good crisp accurate shots (and who doesn't?), the teleconverter does not help. I don't see a point to ever use this item again. I bought my converter on E-bay for much less, but it's still not worth the money or the expectations. It's better to just save your money and get a better quality lens.
Great Kit to have with Sigma lens   2009-08-07
By Ali, (Doha, Qatar)
Hi, I have Sigma 50-500mm lens, with Nikon D90 camera, so this x2 teleconverter used to get 1000mm focal length, and it was more than GOOD. You will need the stand for your camera and you will get real nice and far shots. To see the result please visite my flickr account on this link: [...] The only shortage is the fatc that you can't use it with Nikon lenses, I don't have other Sigma than 50-500mm, so I don't know if it will work with others like Sigma 50mm, or 70-300mm or any other sigma lens.(it should works) If you will capture birds, wild-life or the sky, I think you will need it.