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Tamron Vs. Sigma Fast Lenses
Over the last few years one of the major questions I have been asked has been, which lens is better, Tamron or Sigma? Well, to answer that question, I have to ask two questions. "What kind of camera do you have", and then, "What kind of lens are you looking for?"
The first question is the most important, because Sigma makes lenses for every camera system out there, and Tamron does not.
For instance, If you had an Olympus D-SLR like the E-620 (which I own) and wanted an inexpensive Fast lens for it, You would be limited to either the Olympus, Panasonic or Sigma 4/3s Lenses. Olympus has taken a different route from all the other camera makers and made their sensor in the shape of the standard point and shoot camera rather than the shape of 35mm film. That means it is now a 4 by 3 aspect ratio rather than the typical 3 by 2 aspect ration of film and the other camera makers (aside from Panasonic, who also uses the Olympus mount and sensor shape).
So here is the answer.
Sigma makes fantastic lenses for cameras like this.
For this question let's say that you are looking for a fast lens, on the wider side, and it can zoom and shoot quickly in low light well.
A great lens for you would be the 18-50mm f2.8 EX DC MACRO/ HSM.
This lens has the ability to shoot in low light, as well as bright light, focus quickly and quietly and control the depth of field at all focal lengths between 18 and 50mm. Now something to be aware of is this, because Olympus has a 2X multiplication factor, you are really getting a 36-100mm film equivalent angle of view.
Now that all being said, if you have a Canon or Nikon camera, your best bet and bang for your buck is the Tamron SP AF17-50mm F/2.8 XR Di II VC. It is an excellent quality lens and is usually less expensive than the Sigma counterpart. The Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens.
Both lenses have the same focal length, the same aperture and similar high quality glass as well as applying an anti shake system. Either lens would make an excellent addition to your camera bag. My vote for Canon and Nikon users is the Tamron. If you have a Sigma camera, Olympus or Panasonic, then look into the Sigma system.
Either way, you won't be sad you did!
About the Author
Paul Spring has been a photographer for 10 years and has worked in a nationwide camera shop for 7 of them. He currently resides in Mount Clemens, MI with his wife and two little girls.
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