Sigma 50mm 1.4 EX DG HSM Aperture Blades not uniform.

Started Aug 15, 2014 | Discussions thread
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Sandmanusd New Member • Posts: 20
Sigma 50mm 1.4 EX DG HSM Aperture Blades not uniform.

Just wondering, I got this lens in the mail today and was checking it out. The blades don't seem to form a uniform opening 16, 11, or 8... and barely at 5.6

Is this normal? Is it something I should return this thing for and get a new copy?

wonky aperture blades on Sigma 50mm EX DG HSM

 Sandmanusd's gear list:Sandmanusd's gear list
Nikon D7100 Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Nikon D700 Nikon AF Nikkor 50mm f/1.8D Nikon AF Nikkor 180mm f/2.8D ED-IF
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