Sigma and Tamron lenses with Nikon DSRLs?

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Ceridan
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Sigma and Tamron lenses with Nikon DSRLs?
3 weeks ago

Hi!

So far I'v had a quite bad experience with various Sigma lenses focusing both on D7100 and D610. It is quite usual that at the centre point there is (for example) front-focus while outer (off-centre) points are back-focusing. As you can surely imagine, this can't be simply corrected in the camera and even Sigma authorized service can't correct this.

On the other hand Tamron lenses seems to be fine, just simple and consistent front/back-focusing across all focus points, easily corrected in the camera. (Actually my Tamron 24-70/2.8 requires no correction at all.)

Which leads me idea, whether maybe Tamron knows some tricks which Sigma doesn't or it just spends more time fine tuning their lenses on Nikon bodies?

What do you think?

 Ceridan's gear list:Ceridan's gear list
Nikon D610 Nikon AF-S DX Nikkor 35mm f/1.8G Tamron SP 24-70mm F/2.8 Di VC USD Nikon D40 Nikon AF-S DX Nikkor 18-200mm f/3.5-5.6G IF-ED VR +3 more
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