Best Price Sigma APO Teleconverter 2x EX DG for Pentax Mount Lenses
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Sigma APO Teleconverter 2x EX DG for Pentax Mount Lenses Reviews
Many customers was gave reviews and ratings to Sigma APO Teleconverter 2x EX DG for Pentax Mount Lenses. If you want to read those detail to make your decision on this product just CLICK HERE
Sigma APO Teleconverter 2x EX DG for Pentax Mount Lenses Overview:
- Teleconverter lens for Pentax 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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Sigma APO Teleconverter 2x EX DG for Pentax Mount Lenses Reviews
85 of 89 people found the following review helpful 
Sigma 2X EX DG APO Teleconverter for Nikon AF Cameras, February 16, 2007 By This review is from: Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses (Electronics) 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.
54 of 58 people found the following review helpful 
Useful enhancement, within reason, May 21, 2009 By Photoleif (colorado, usa) - See all my reviews This review is from: Sigma APO Teleconverter 2x EX DG for Canon Mount Lenses (Electronics) First, to set things straight: this TC is intended for only Canon cameras, and for Sigma lenses that mount on a Canon camera. Anything else, you're taking your chances. 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... Read more
24 of 26 people found the following review helpful Very pleased, May 2, 2008 By This review is from: Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses (Electronics) 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.
› See all 31 customer reviews...
| 85 of 89 people found the following review helpful Sigma 2X EX DG APO Teleconverter for Nikon AF Cameras, By This review is from: Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses (Electronics) 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. 54 of 58 people found the following review helpful Useful enhancement, within reason, By Photoleif (colorado, usa) - See all my reviews This review is from: Sigma APO Teleconverter 2x EX DG for Canon Mount Lenses (Electronics) First, to set things straight: this TC is intended for only Canon cameras, and for Sigma lenses that mount on a Canon camera. Anything else, you're taking your chances. 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... Read more 24 of 26 people found the following review helpful Very pleased, By This review is from: Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses (Electronics) 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. |
› See all 31 customer reviews...
