Canon Lenses Best
What is the best lens to buy at the top of my Canon 450D 18-55mm? Is it better to buy Canon lenses Sigma?

Is it better to invest in Canon lenses?

The image quality of these manufacturers can be just as good or even better in some cases, as the equivalent Canon. Other times, can fill a niche for which there is no alternative to Canon. As I said, really depends on the lens. I used to own a Canon 50 mm f / 1.4, and after buying Sigma 50mm f/1.4 EX DG, I sold the Canon. The Sigma is more expensive, but my copy was simply better in all respects, especially the contrast / sharpness. Just So, I use the Sigma 150mm f/2.8 EX DG APO Macro 90mm f/2.8 Di Macro Tamron day – for the work they do, are simply the best lenses I purchased. When comparing the Sigma The Canon 180mm f/3.5 L (since there is no Canon equivalent) is like comparing different degrees of perfect. The Sigma gives a slightly warmer, but I prefer that. I would take the Tamron 17-50mm f/2.8 IS in the Canon 17-55mm f/2.8 because I believe from experience that the reds and oranges tend to occur more than the Tamron on a consistent basis, although I do appreciate the image stabilization of the Canon. Also, if you can only afford a choice of a third manufacturer, this is the best option – I think it is better to own a decent lens and take pictures to save for a career goal and lose all the shots while you're waiting. I have found that the strongest on manufacturer's purchase of lenses has never made use of third party lenses to any great extent. Usually these are "online experts' in the likeness of what heard of a website or a forum for photos. The biggest argument I know for the purchase of Canon in the equivalent third is the quality control. Sometimes you get Sigma lens decentration misfocuses or sample (soft in the middle, sharp on one side). This is, of course, a big problem, but the only time I had a problem with such Sigma, said that they found my lens a complete shame on his name and my lens is replaced immediately with no problems. Sigma and Tamron are generally accepted as very Fixing good lenses few Shotty what they publish, if you're willing to consider that risk. You will not find a Canon lens with the same issues quality control. Canon lenses also tend to contain about 15% more than the resale value of Sigma, Tamron, Tokina or