Sigma 50-150 f/2.8 OS reviews round-up

Here are all the reviews I've found so far for the Sigma 50-150 f/2.8 OS:

• ERphotoreview - IMATEST: http://erphotoreview.com/wordpress/?p=2867
  This is probably the 'best' review of the optics, since it measures the lens using IMATEST.
  
• Darwin Wiggett - samples: http://oopoomoo.com/2012/08/real-world-review-of-the-sigma-apo-50-150mm-f2-8-dc-os-hsm-lens/
  
• F-stoppers - samples: http://fstoppers.com/is-the-upgraded-sigma-50-150mm-is-a-solid-do-it-all-lens
• Jared Polin - samples: http://froknowsphoto.com/sigma50-150-review/
• Chi Photography - samples: http://www.chi-photography.com/sigma-apo-50-150mm-f2-8-ex-dc-os-hsm-telephoto-zoom-lens-pros-and-cons/
  
• Tangent Photo: http://www.tangentphoto.com/reviews/lenses/sigma50-150mmoslensreview.html
• D-Photo: http://www.dphoto.co.nz/reviews/sigma-50-150-mm-f2-8-apo-ex-dc-os-hsm-lens/
• ​The Digital Picture (incomplete): http://www.the-digital-picture.com/Reviews/Sigma-50-150mm-f-2.8-EX-DC-OS-HSM-Lens-Review.aspx
  

My reviews / threads:

• Observations and samples: http://forums.dpreview.com/forums/post/42194518
  
• MTF chart analysis: http://forums.dpreview.com/forums/post/41513423

Shopping reviews:

• B&H Canon version: http://www.bhphotovideo.com/c/product/853533-REG/Sigma_692_101_50_150mm_f_2_8_EX_DC.html
• B&H Nikon version: http://www.bhphotovideo.com/c/product/853531-REG/Sigma_692_306_50_150mm_f_2_8_EX_DC.html
• Amazon Canon version: http://www.amazon.com/Sigma-50-150mm-F2-8-Canon-DSLR/dp/B007PXLCXY/ref=sr_1_1?s=electronics&ie=UTF8&qid=1349981695&sr=1-1&keywords=sigma+50-150+os
  
• Amazon Nikon version: http://www.amazon.com/Sigma-50-150mm-F2-8-Nikon-Mount/dp/B007SRLJCQ/ref=sr_1_2?s=electronics&ie=UTF8&qid=1349981695&sr=1-2&keywords=sigma+50-150+os 

If I come across any more reviews, I'll post them as replies to this thread.