Posted by: ExodistPhotography
« on: Today at 11:47:16 AM »
Insert Quote
"Now the 17-55 is a whole seperate beast since it was a f/2.8 zoom and other improved optics. Its also why it has hung around so long. This was is considered Enthusiast level lens. Mostly becuase of its optical configuration since it had 2 ultra low dispersion elements which was normally reserved for L lens. The 10-22 also has a UD element. The 17-85 and 15-85 did not."
The 15-85 has 3 aspherical and one UD element. The 15-85 is just as sharp or more sharp than the 17-55.
« on: Today at 11:47:16 AM »
Insert Quote
"Now the 17-55 is a whole seperate beast since it was a f/2.8 zoom and other improved optics. Its also why it has hung around so long. This was is considered Enthusiast level lens. Mostly becuase of its optical configuration since it had 2 ultra low dispersion elements which was normally reserved for L lens. The 10-22 also has a UD element. The 17-85 and 15-85 did not."
The 15-85 has 3 aspherical and one UD element. The 15-85 is just as sharp or more sharp than the 17-55.
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