handicap18
<font color=blue>Husband, father of 3, and Disney
- Joined
- Oct 18, 2005
- Messages
- 4,860
extreme8 said:The superzooms don't have lightning fast focus, but with a little practice on you should be able to make due for sports. I think the Tamron is at f5.6@200mm, so daytime shots shouldn't present a problem. You will find the extra 65mm of focal length to be a lifesaver.
The Tamron is f/6.3 at 200mm (probably starting around 160mm). So its really only good outside during the day at the long end and the longer you go on the long end the slower it will focus. Same goes for the Sigma version.
These are good lenses to get someone who hasn't used SLR's in past a decent start. Over the long haul you'll need to add other lenses. This is where one of the biggest debates happen with dSLR's now. A lot of people who never used SLR's in the past are now moving up to dSLR's and are used to the long zooms that the P&S's offer and are finding it hard to duplicate that. Thing is the majority of SLR zoom lenses are 3x to 4x zooms. Thus the need to have at least 2 lenses to cover a greater distance. I believe there are only 3 "super zooms" out there, Sigma 18-200, Tamron 18-200, and Nikon 18-200 are 11x zooms. Sigma and Tamron make an 18-125mm and Nikon makes an 18-135 which come in around 7x. There are rumors of I believe Tamron coming out with an 18-250mm, but if the 18-200mm version is a decent lens at $400 then what is the 18-250 going to be like. It would have to be a huge lens thats very expensive or a low quality still kind of pricy and have f/7.1 at the long end? I don't know. Canon still hasn't put their feet in the super zoom category.
The lens debate will go on forever and each person will have their pick. As always, YMMV, different strokes for different folks, one mans trash is another mans treasure and all those other phrases.