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Old Jan 31, 2006, 9:53 AM   #21
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Great info.* I will pass on the Sigma.*
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Old Jan 31, 2006, 10:19 AM   #22
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Now you've gotten me interested in these, and I found this comparison done by a person with access to several of these range zooms at one time. The sigma did quite well. You might want to stop reading before the fecees flinging starts, though...:roll:

http://forums.dpreview.com/forums/re...ssage=16929724
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Old Jan 31, 2006, 8:12 PM   #23
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I may have already asked, but is the 50mm f/1.4 lens worth the extra money over the 50mm f/1.7 considering the results of images and the availability?* I may change my focus for looking for a 50mm f/1.4 if in the long run this will be a much better lens.
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Old Jan 31, 2006, 8:42 PM   #24
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tmoreau-

Yes, we can all post various links. However, can you please give us, in some detail,your personal evaluation of the various 70-300mm lenses that might fit either the KM 5D or the 7D.

Your personal analysis is very important to me.

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Old Jan 31, 2006, 8:48 PM   #25
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No, gobucks, I personally do not believe that the 50mm F 1.4 lens is worth the extra $$ over the Minolta F 1.7 lens.

Yes, you can indeed get sucked into spending MORE $$, but that will be your personal decision. As for me, I am quite happy indeed, with the Minolta 50mm F 1.7 lens.

Can you give me a logical and well constructedargument why the Minolta 50mm F 1.4 lens is any better than the Minolta F 1.7 lens?

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Old Jan 31, 2006, 9:34 PM   #26
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On paper, I tend to agree.* Only 0.3 difference on the f stop.* Does not seem like a big difference?
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Old Jan 31, 2006, 9:49 PM   #27
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How important is it to have a UV filter on this or any lens to protect from dust, moisture, scratches, etc? And what is the mm rating for different filters (i.e. 52mm)?
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Old Jan 31, 2006, 10:08 PM   #28
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Nope! All I can offer is to help with the research, much of which I'm already doing for my own purposes.

I have the 70-210/4.5-5.6 which I bought so that I would have a zoom until I could figure out if/what better lens I need. Its small and light, being just slightly larger than the kit lens when both are in thier storage positions. Its silly cheap, but I havent had the chance to test it much yet. It seems to focus very slowly, but until I get some more milage on it thats all I can say.

I decided to make a comparison of the lenses I have, just for fun. http://home.comcast.net/~tmoreau2/compare/test1.htm I did enjoy myself though, and the results were interesting. I might make another set of pictures in a few days to add to it.
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Old Jan 31, 2006, 10:13 PM   #29
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The mm rating is the size of the threads on the lens, you need to buy that size filter for it to be able to screw in. You can buy a step down ring to use a larger filter on a smaller lens, so that you dont have to buy so many.

To continue with the endless linking... http://dpfwiw.com/filters.htm has a detailed article about filters that I enjoyed. Particularly fhey list some pro's and con's to using UV filters for lens protection, its a hotly debated topic.
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