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Old Apr 7, 2004, 9:10 AM   #11
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I didn't think to post this link before, but here's an action shot I took with my DRebel & 28-300 Tamron lens. Image is sharp, no post editing was done as I recall.

http://community.webshots.com/script...ecurity=swCjMn

Also - this was full 300 mm shot using the same lens with camera on a monopod. I increased contrast slightly in post.

http://community.webshots.com/script...ecurity=vvfpyh
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Old Apr 10, 2004, 11:12 PM   #12
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Fporch,

I couldn't get access to those images. Looks like a site that won't grant access unless the user is signed in and is the owner of the image, so others will probably not get access either.
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Old Apr 11, 2004, 7:32 AM   #13
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FYI
http://www.nyip.com/tips/topic_firstslr0803.php
http://www.popphoto.com/pdfs/2002/10...s/tamron28.pdf

... and just to muddle things up: :lol: :lol: :lol:
http://www.photoshot.com/articles/pr...a_28_300mm.htm
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Old Apr 11, 2004, 11:07 AM   #14
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If you consider to buy off brand lenses for your Canon DSLR, consider no less than these lenses brands and series:

Tamron SP
Sigma EX
Tokina ATX

Make sure your maximum aperture at the longest zoom position is no less than F/5.6 or you will have real AF problem, even though, you want to change to MF, it will be difficult also since at F/6.3 or smaller, the viewfinder is very dark.

The above tree major brands/series are very caparable, good lenses, very good results, but with AF operations compare to Canon USM, they all bite the dust.

If you can live with that for the different of what you pay, then ...there you go, other than that, my recomendation is; Canon USM lenses work better with Canon DSLR, period...
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Old Apr 12, 2004, 6:56 AM   #15
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Quote:
Originally Posted by [email protected]
The above tree major brands/series are very caparable, good lenses, very good results, but with AF operations compare to Canon USM, they all bite the dust.
Actually a lot of Sigma EX lenses have HSM, their version of ultrasonic which is also as fast as quiet, and allow full manual overide of the AF just like the OEM's. BTW all Sigmas, at least the EX (like Nikons) are true zoom which one can't say the same about the Canon's... ie zoom in on something up close and zoom out and see if the focus has changed!
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Old Apr 22, 2004, 11:25 AM   #16
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In the 28-300 range is there any real difference in the Tamron and the Sigma lens? Other than price? This looks like it will be the best value for my VERY short dollars right now. Maybe I can do better later.
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