Primes sharpest first:
200 1.8 (but it is huge and expensive)
85 1.2 (perfect for portrait)
135 2 (I don't have one but saw wonderfulpics taken with it)
One of the sharpest (what's in a name, it varies from lens to lens) could be the little 60/2.8 macro. Funny, but it's true
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In the late 1990s, using Hasselblad's optical bench testing system, Lars Kjellberg tested a bunch of lenses of all brands. He assigned each lens a score based on the MTF charts of his tests. The 200 f/1.8L scored higher (4.8/5.0) than any other lens tested, of any brand.
I've shot many thousands of photos with this lens. In addition to being razor sharp, even at f/1.8 and at f/2.5 with a 1.4x extender, it has absolutely beautiful bokeh.
The Figure Skating, Hockey, Lacrosse and Soccer photos in my gallery were taken using this lens.
The Canon 200 1.8 is known as the sharpest lenses ever made, but I've never tried it. Between the lenses that I've tried, the sharpest one is surely the 300 2.8 IS.
Let's face it, most of us neither need nor use the big primes. I really do not want to drag around all that weight and what most of us are looking for is the sharpest zooms. So, the next question is what is the sharpest zoom that does not cost or weigh a ton? wide angle, medium and telephoto.
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are you saying you get zero noticeable CA and full crispness to the extreme corners even by f/2.8 nevermind f/1.4? from a wide?
not that the 35mm isn't the best wide prime canon makes, so perhaps
it is possible, but it seems hard to believe.