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01-15-2013, 07:08 PM   #1
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Comparing Sigma Lens

I am preparing to purchase a long lens - either the 50-500mm or the 150-500mm by Sigma. I am interested in opinnions on which is most like to deliver the best focus at the 500mm length. I do a lot of wildlife photography and want crisp shots from good distances. Bears tend to eat photographers with shorter lens . Does anyone know of a better alternative in the same price range than the Sigma. I shoot with K-7 and K20D with a K10D as a backup.

01-15-2013, 07:55 PM   #2
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There are a few opinions in this thread. Also if you haven't yet, look at the reviews for these lenses.
01-15-2013, 09:54 PM   #3
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An in-depth review of interest:
Sigma 50-500mm F4.5-6.3 APO OS HSM - Review -

with a relevant discussion at:
Sigma 50-500mm F4.5-6.3 APO OS HSM - Review -

Hope that the info may help.
03-09-2013, 08:56 AM   #4
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As a follow-up to my original post I have purchased the Sigma 50-500 along with a K5-IIs and it is an awesome combination. I have now shot more than 6000 pictures since I got the combination just over a month ago. After a bit of a learning curve I could not be happier. Have been shooting pictures of eagles and other birds with great success. Here is a link to one of many As for all the controversy over the clarity of the K5-IIS I find it much better than my K7 or K20. Check the base album of the link above for more exampls.


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