82mm Circular Polarizer Filter Vignetting Results Added

With a standard thickness B+W 82mm Circular Polarizer filter recently added to our lab inventory, we now have 82mm Circular Polarizer filter vignetting results included in the following reviews:
 
Canon EF 16-35mm f/2.8 L II USM Lens (compare)
Canon EF 24-70mm f/2.8 L II USM Lens (compare)
Tamron 24-70mm f/2.8 Di VC USD Lens (compare)
Tokina 17-35mm f/4 AT-X Pro FX Lens (compare)
Coming soon: Sigma 24-70mm f/2.8 EX DG HSM Lens
 
Because of the thickness of standard circular polarizer filters, mechanical vignetting is sometimes an issue when they are used on wide angle lenses. These tests allow comparison between the bare lens and the with-CP filter results (typically the last option in the focal length drop-down box).
 
In the above examples, the two Canon lenses show some additional vignetting when used with the standard thickness CP filters. While a slim circular polarizer filter is a great option, I much-prefer B+W's flagship B+W's XS-Pro Circular Polarizer Filters (B&H) (Adorama). These top-of-the-line filters are slim, but include front threads that will hold a standard lens cap in place.
Posted: 2/7/2013 9:49:43 AM CT   Posted By: Bryan
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