Dustin,TWI by Dustin Abbott said:A lot of wide angle lenses have a heavy vignette, but here's the reasons I made a big deal out of it:
1) I was surprised to see that using Canon's own profile correction in DPP (the lens wasn't supported yet by Adobe when I reviewed it) resulted in visible noise being created along the edges...and that was on the 5D Mark IV, which has the best shadow lift of any Canon body. This was also at ISO 100.
2) Canon really priced this lens high. When a lens is expensive it means that I will personally be more demanding in my expectations than of, say, a $125 50mm f/1.8 STM. The 35L II was also priced really high, but when I got through reviewing it I couldn't really gainsay it. The lens delivered (and incidentally I'm expecting a delivery of my own copy any day now). I wasn't quite as wowed by the 16-35L III, and when it comes in at double+ the cost of the already good 16-35 f/4L IS or Tamron 15-30 VC, well...
I don't think this is all that people should fixate on, as it may not really be a big deal in your real world shooting, but it is a real optical drawback. It's a great a lens in so many ways, but that price...uggg!
Great reviews. Don't get discouraged by the nattering nabobs of negativity.
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