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Old Feb 21, 2007, 5:01 PM   #1
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I have some most likely basic questions about lens acronyms.

in 70-300 DL macro what does the dl stand for? can I take action photos with this lens?

what does ex, s, dx, APO, dg, and others mean? I'm confused!!! Help :?



If I'm looking for a 300mm lens to take action soccer shot should I look for a certain acronym or are all 300mm with comparable F/#'s created eqaul?
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Old Feb 21, 2007, 9:29 PM   #2
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Many of these acronyms are used by Sigma. If you go to their site:

http://www.sigmaphoto.com/lenses/lenses_all.asp

Bring up the details of a lens that interests you and you should see the acronyms. Click on one of them and you should get a window that defines the acronyms.

I don't recall seeing DL. Tamron uses the acronymn LD to mean low dispersion.

You should be ableto use almost any lens for action shots pronided that you have adequate illumination levels. Some are better than others. You have to consider maximum apeture and focus speed. What type of action do you plan to shoot?

--FrankD
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Old Feb 22, 2007, 11:23 AM   #3
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Thanks for the reply and link. I will be taking shot of my children playing sports. Mainly soccer and track.
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Old Feb 22, 2007, 8:02 PM   #4
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So the primary usage will be outdoors with a reasonable amount of light. I don't really do much sports photography myself but I would guess that a zoom with a focal length of up to 300mm would probably serve you quite well. There is quite a wide choice available in this range so you will have to do some trade-offs.

I have a Minolta 100-300mm. It gets so-so reviews but I find that it can give acceptable pictures. The biggest problem with this lens is AF speed. It also has a tendency to hunt at lower light levels. I think I would have to use manual focus for fast action sports.

The following link has a lot of useful information and user opinions on a wide selection of lenses:

http://www.dyxum.com/lenses/index.asp
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