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Home >> Digital Camera Accessories >> Lenses
Sigma APO Teleconverter 2x EX DG for Nikon Digital SLR Cameras | List Price: $239.00
Discount Price: $207.68
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Brand: Sigma
Binding: Electronics
Features: - 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
only works with very select lens' [Posted on 2006-09-06]
i bought this item to extend my shooting range on my nikon d100 - the longest lens i have is a 300mm. the 2X converter didn't fit my nikkor 300mm, my tamron 28-80mm or my nikon 105.
Loss of Quality / Lack of Focus [Posted on 2007-02-10]
I bought this converter to use with my Nikon ED AF Nikkor 80-200mm 1:2.8 D lens on my Nikon D80. It fits the lens, and seems to work, at least for metering and manual focus, but the resulting images aren't usable-- or at least aren't any more usable than without the converter. My test shoots have been with a sturdy tripod in broad daylight, around f8 and 1/640th (so, plenty of light). I varied the aperture from 11 down to 3.2 (changing the speed accordingly). In taking pictures of a still subject, where I have achieved excellent focus through the viewfinder, the resulting images are very noticeably out of focus.
I played with focusing closer or farther, compared with dead on, and none of these produced an image that was clearly enough in focus to be worthwhile. If I compare the images taken without the teleconverter at 200mm with images taken with the converter (400mm), the result is a similar amount of clarity. In other words, if I crop and the 200mm photos and compare them to ones taken with the teleconverter, I've got just about the same clarity. So, the upshot is, don't get this teleconverter if you are looking to get closer and retain clarity in your images.
Sigma 2X EX DG APO Teleconverter for Nikon AF Cameras [Posted on 2007-02-16]
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.
Very pleased [Posted on 2008-05-02]
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.
Poor focus when used with Sigma 150-500mm Telephoto Zoom Lens [Posted on 2008-10-31]
I bought this teleconverter to use with the Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras. My intent was to use it for bird photography with my Nikon D200. However, after thorough testing in good light (Better Beamer, F11, 1/250, ISO 200), I was unable to get clear images (tried both auto and manual focus).
I returned both the telconverter and the Sigma 50-500mm.
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