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Canon EF 17-40mm f/4L USM

ef17-40_4l_1_
Review Date: Jan 21, 2008 Recommend? yes | Price paid: Not Indicated | Rating: 9 

 
Pros: Image quality, Build quality, focus speed
Cons:
Wrong lens hood for 1.6 camer's.

After upgrading from the excellent Tamron 17-50 2.8 and 28-75 2.8 ( I missed the focus speed en build quality) I also really thought that this was Canon worst L lens. Ik couldn't believe all the positive story's on this forum and sites like the digitalpicture.com or photozone.de

Well, last week I tested my lens at Rofa Repair in Den Haag en the problem was that I have a litte backfocus wich was the reason for the softness.

After calibrating my 17-40, the sharpness is almost a little bit better than Tamron 17-50 but the clearness is much better and the same as my 70-200 4L. Excellent color, saturation en contrast. I will keep this lens my whole life!