Sigma 17-50mm f/2.8 on D300s

Started Apr 22, 2012 | Discussions thread
motobloat Regular Member • Posts: 497
Re: Sigma 17-50mm f/2.8 on D300s

Ross Kennedy wrote:

I have the non-OS version and it's frankly awful...really soft at 50mm. I also have the sigma 10-20 and the 50-150 which are both great, so I suspect I got unlucky with a bad copy. There are loads of complaints on here about sample variation on fast, wide zooms, so buy from somewhere with a good return policy.

"The non-OS version" ???

That must be one of the 18-50 f/2.8 models? The current 17-50 f/2.8 OS is the only Sigma "17-50" ever made. All the earlier models were 18-50 and generally weren't as good performers wide open:

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