Quote:
Originally Posted by OsmosisStudios
Man, how does Canon not have a good 105mm portrait prime. Yeash :P
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Because they have the 135 f/2 L, which is even better
Test Notes
As the reader reviews below testify, this is an absolutely stellar lens, probably one of the sharpest and most distortion-free that Canon makes. It starts out very sharp at f/2.0, gets even sharper at f/2.8, and softens only slightly at f/11. At f/32, it's pretty soft, but less so than a lot of lenses at that aperture. (Suggesting that diffraction limiting is only part of the story with lens softness at tiny apertures.)
As you'd expect from a premium prime lens, both maximum and average chromatic aberration is very low across the aperture range, with the maximum CA on the order of 0.02% of frame height regardless of aperture. Exposure uniformity (vignetting) is also really excellent, reaching a maximum of 1/4 EV (on a camera with an APS-C size sensor) at f/2, and dropping to well under 1/10 EV at f/2.8 and above. The lens shows a very slight pincushion distortion, but it's well under 0.1% of frame height, an excellent performance by any measure. Finally, although we don't explicitly test for it, we have to note that this lens' bokeh (rendering of out-of-focus objects) is really excellent as well. Fit and finish are first-rate as well, with very smooth manual focus operation, and very fast autofocus on the camera.