Sigma 10-20mm f4-5.6 EX DC HSM

meddyliol

Senior Member
[h=1]I have a Sigma 10-20mm f4-5.6 EX DC HSM used just for general messing about. I wonder if I should have bought the f3.5 version. Is there really much difference in quality between the two?[/h]
Thanks

Brian
 
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