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4 Year Camera Accident Protection Plan

from Warrantech

4 out of 5 stars (1327)
  • Includes Parts and Labor coverage plus accidental damages caused by drops and spills
  • Repair or Replacement Promise on Every Product and Never a Deductible
  • 5 Day Repair Guarantee on Depot Service
  • Contract Delivered by E-mail, Register and File Claims Online or by Phone
  • Excludes Aerial Drones and Radio Controlled Devices
Learn more

3 Year Camera Accident Protection Plan

from Warrantech

4 out of 5 stars (1327)
  • Includes Parts and Labor coverage plus accidental damages caused by drops and spills
  • Repair or Replacement Promise on Every Product and Never a Deductible
  • 5 Day Repair Guarantee on Depot Service
  • Contract Delivered by E-mail, Register and File Claims Online or by Phone
  • Excludes Aerial Drones and Radio Controlled Devices
Learn more
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Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses

by Sigma
3.9 out of 5 stars 109 customer reviews
| 76 answered questions
List Price: $380.00
Price: $299.00 & FREE Shipping. Details
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In stock on April 24, 2016.
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Nikon Mount Lenses
US Version
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  • Teleconverter lens for Nikon SLR cameras
  • Increases the focal length by the power of 2
  • Multi-layer lens coating and lens design reduces flare and ghosting
  • Includes lens case
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$299.00 & FREE Shipping. Details In stock on April 24, 2016. Order it now. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses
  • +
  • Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Nikon Digital DSLR Camera
  • +
  • Tiffen 77mm UV Protection Filter
Total price: $1,462.79
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Style: Nikon Mount Lenses | Configuration: US Version
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Technical Details

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Compare to Similar Items


This item: Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses
Customer Rating 4 out of 5 stars (109) 3 out of 5 stars (86) 3 out of 5 stars (80) 4 out of 5 stars (221)
Price $299.00 $249.00 $496.95 $1,149.00
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com
Compatible Mountings Nikon AF Nikon F Nikon F (FX) Nikon F (FX)
Dimensions 2.72 inches x 2.05 inches x 2.72 inches 2.72 inches x 0.79 inches x 2.72 inches 2.6 inches x 1.89 inches x 2.6 inches 3.39 inches x 7.76 inches x 3.39 inches
Item Weight 0.52 pounds 0.32 pounds 0.73 pounds 3.2 pounds
Lens Teleconverter Teleconverter Teleconverter Zoom lens
Maximum Aperture Information not provided 1.4 Information not provided 2.8
Max Focal Length 6 mm 1.4 32 mm 200 mm
Min Aperture Information not provided Information not provided Information not provided 22
Min Focal Length 2 mm 1.4 2 mm 70 mm
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Product Information

Style:Nikon Mount Lenses  |  Configuration:US Version
Product Dimensions 2 x 2.7 x 2.7 inches
Item Weight 8.3 ounces
Shipping Weight 14.1 ounces (View shipping rates and policies)
ASIN B000CDA7Y4
Item model number 876306
Customer Reviews
3.9 out of 5 stars 109 customer reviews

3.9 out of 5 stars
Best Sellers Rank #176 in Camera & Photo > Camera & Photo Accessories > Lens Accessories > Adapters & Converters
#681 in Camera & Photo > Lenses > Camera Lenses > Digital Camera Lenses
Date first available at Amazon.com November 17, 2005

Technical Specification

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsSigma 2X EX DG APO Teleconverter for Nikon AF Cameras
By T. Spencer on February 16, 2007
Style Name: Nikon Mount LensesConfiguration: US Version Verified Purchase
After reading the two reviews above, I was somewhat baffled. If you do any research on this product, you will find it clearly is made only for use with Sigma lenses, not Nikon lenses. The instruction manual that comes with the converter even lists which specific Sigma lenses to use. If you want a converter for Nikon lenses, buy the Nikon TC-20E (retails for more than twice the Sigma). Of course the quality of this product is poor when using a Nikon lens! I have a Sigma 70-200 zoom and it works beautifully; it is well worth the price.
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4.0 out of 5 starsUseful enhancement, within reason
By Photoleif on May 21, 2009
Style Name: Canon Mount LensesConfiguration: US Version
This review concerns the Canon-compatible converter. First, to set things straight: this TC that I am reviewing is intended for only Canon cameras, and for Sigma lenses that mount on a Canon camera. Anything else, you're taking your chances (Nikonians, you have your own mount, so disregard that). Second, there are optical laws that invariably predict a 2-stop decrease in the amount of light hitting the sensor. And finally, glass, no matter which brand or how many exotic elements in it, has undesirable characteristics and you will always lose some amount of clarity, saturation and perceived quality (how much varies from lens to lens and eye to eye).

Now that those fundamentals are out of the way, the results and recommendations. I took several photos using this TC mounted on my Sigma 70-200/2.8 and my Sigma 150-500/5.6~6.3. I also attempted to mount my Canon 28-70/2.8L on it, but the fit did not work (it scrapes and sticks and will not lock into place), and thus I believe they are incompatible. I did not test it with my Sigma 10-20/4.5~5.6 for obvious reasons.

AF is maintained throughout the entire range of the 70-200/2.8, as advertised in Sigma's compatibility chart. MF is engaged electronically for the entire range on the 150-500/5.6~6.3, again per the chart. AF through the 70-200 is solid, accurate, and has no degradation of speed. MF through the 150-500 @ 500 is, as one should understand, a touchy process, though it's aided considerably by the optical stabilization function.

Image quality @ 500mm (really, 1000mm) is not spectacular (though what does one expect, given a maximum aperture of about f/12.9). I didn't expect wonders but I had hopes of better. Some of this is inevitably due to my challenge in focusing, which is difficult without a split-prism finder.Read more ›
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2.0 out of 5 starsI wanted to like it but ended up returning it
By Robert P. on August 4, 2011
Style Name: Nikon Mount LensesConfiguration: US Version Verified Purchase
First let me just say that I am NOT a pixel peeper. I am a professional photographer that realized, after years, that my clients are more concerned with the content of a photo than if it's a little soft. I have sold 16x24 prints even after pointing out to the client that it is not tack sharp. With that in mind I had reasonable expectations for this 2x teleconverter. I shoot a Sigma 70-200 f2.8 lens and wanted the teleconverter to get some more reach for recreational wildlife photography. I did not expect it to perform like a dedicated $1700 400mm telephoto lens. I figured it would be a little soft. The converter was compatible with the 70-200 and autofocus was fast.

After shooting with the teleconverter for 3 weeks I decided to send it back. I REALLY wanted it to work. The images were unusable for me. Like I said, I'm not a pixel peeper that obsesses over tack sharp images. Even my wife (a non photographer) asked by the images were blurry. I thought maybe it was my technique. So I mounted it on tripod, in the middle of the day with a fast shutter speed just to see if I could get something that was sharp. No matter what I did I got really soft images with what looked like a dreamy blur to them (think cheesy 1980s portraits) and color fringing.

I love Sigma glass. Its high quality, professional level equipment that will stand up to professional abuse. I shoot the Sigma 70-200mm 2.8, 18-50mm 2.8 and the 30mm 1.4. Amazing glass at a fraction of the cost as Nikon or Canon. But this 2x converter does not hang with the rest of them. Maybe I just got a bad copy but it sounds like others have had the same experience. Guess I'll just need to save up for the big boy: Sigma 50-500mm.

Hope this helps.
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5.0 out of 5 starsPerfect addition to my slr setup
By Brian06 on February 4, 2011
Style Name: Canon Mount LensesConfiguration: US Version Verified Purchase
I bought this product primarily for use with my canon mount Sigma 2.8 70-200. So far it has performed exactly as it should. I havent tried to mount it on any of my other lenses, but according to sigma's website, it is built for use specifically with sigma lenses, which makes perfect sense. Obviously the 2x extender takes you down to 5.6, but to make a 200mm lens a 400mm is pretty well worth it in my opinion, though shooting a football game under low light wouldnt really be an option with the 5.6 aperture, any other decently well lit situations would work well with this extender. The autofocus seems to be working perfectly, as if the extender is not even there when using my Sigma 2.8 70-200. This product does exactly what it is supposed to do and is an awesome edition to any sigma lens setup.
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4.0 out of 5 starsVery pleased
By Ronnie Phipps on May 2, 2008
Style Name: Nikon Mount LensesConfiguration: US Version
I got this 2x converter to match the Sigma 70/200 2.8 lens. I have shot around 100 pics with this set up and have been very pleased with the results. I have shot wildlife to school track meets.
The only reason I couldn't give this converter a perfect mark is I can't use it with my other Nikon lens.
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Most Recent Customer Reviews

5.0 out of 5 starsWorks great for his

Got this for my husband for Christmas and he loves it. Works great for his purposes

Published 2 months ago by TheZabers
4.0 out of 5 starsFour Stars

Works well.

Published 5 months ago by Gary Bailey
2.0 out of 5 starsSofter than expected. In all honesty, I may have just gotten a bad...

The reason I purchased this lens was to take pictures during Friday night high school football games. Read more

Published 6 months ago by Alexander Gray
5.0 out of 5 starsFive Stars

excellent product@@!

Published 7 months ago by ido fruchter
5.0 out of 5 starsWorks well with my Sigma 150mm-500mm lens. However, ...

Works well with my Sigma 150mm-500mm lens. However, it is very limiting with other Sigma lenses. It will only work with a few of the Sigma lenses. Read more

Published 8 months ago by Lisa
4.0 out of 5 starsNicely done again Sigma

Nicely done again Sigma! It's compact and light which is good because when attached to my pretty heavy 70-200mm f/2.8...it.could have led to shoulder surgery! But it won't. Read more

Published 9 months ago by Jason Aldridge
5.0 out of 5 starsFive Stars

Worked great, no longer have it , sold it.

Published 9 months ago by Carl Countryman
5.0 out of 5 starsI gave it numerous test shots and it gave me very clear pictures and...

I plan to use it on my bear trip in Alaska next month. However, I gave it numerous test shots and it gave me very clear pictures and it was easy to use. Well worth the money/

Published 9 months ago by Warp
1.0 out of 5 starsBlurry outcome

This 2X lens did not perform well. I am not sure if the problem was the design or manufacture of the lens but I could not get a sharp photo when attached to my 150 to 500 zoom. Read more

Published 10 months ago by Amazon Customer
5.0 out of 5 starsFive Stars

Excellent purchase. It's what I expected

Published 11 months ago by jorge campana

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