Super telephoto zoom lens make the heart rate "Pitter-pat" a little '. We are a lens that has a long focal length at the end of more than 300 mm base. So you can get up close and personal with just about any topic, and some who are very shy creatures and not social.
The Sigma 120-400mm f/4.5-5.6 DG OS HSM is a goal. The good news is that it is selling for less than $ 1K. Compare prices for popular Canon lenses in the sameFocal length arena, the Canon 100-400mm f/4.5-5.6, which tips the economic balance of more than $ 15K and you have a bargain.
But the good news is not over yet. If you have a camera with a "sensor crop", you are shooting at the focal length equivalent of 192-640mm. This is a Canon APS-C sensor camera like the 60D or a Rebel T3i. At this length you can still see the nose hairs of a Dallas Cowboys running back from the end zone, or if you're a lover of birds, springModels in a Carolina Chickadee 100 meters.
The Sigma 120-400mm lens is ideal especially for photographers who are looking for a lens for shooting sports, wildlife and even street photography (the photographer to remain completely anonymous with regard to photo opportunities). Other types of photography that are the target buyers of super telephoto lenses, nature and landscape in particular cases. Obviously this is not a wide angle lens, but if you wanton the moon or photograph Mt. McKinley from a distance, this lens to fill the bill.
An important feature of the Sigma lens you do not want to overlook is HSM. This stands for Hyper Sonic Motor, determines how quickly the focus locks on the issue. HSM is awesome, especially for fast moving subjects (as indicated above, the Chickadee) tend.
Some notes on the expectations from this or another lens with telephoto lenses. The lenscomes with a tripod collar for a reason. Use it on a tripod when possible. Yes, it's "OS" has - Sigma version of image stabilization, the lens and perform quite well when the light is good. But the greater the focal length, the harder it is to keep the camera steady. The movement is amplified only slightly less than the focal length.
Also, try to get a shutter speed at least equal to the focal length you are shooting. For example, if a larger focal length300 mm, you want to keep about a 1 / 300 sec shutter speed to blur to a minimum. You can increase the ISO of the camera, to help get a faster shutter speed.
This objective was very popular at the camera store. It has a 4.5 rating of 5, which is almost as high as the Canon L lenses. And just a reminder, is about $ 500 cheaper.
As for the negatives are concerned, the most frequent comment is that it is difficult. The other comment that had appeared several timesthat this "slow to crawl." a
All this is like a good alternative to the more expensive super telephoto lenses, especially if the price is a problem (and the price is not always a problem?).
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