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p.1 #9 · p.1 #9 · bokeh with Canon 50mm 1.4 vs Sigma 50mm 1.4?? | |
I have the 50L, Sigma 50, and EF 50 1.4. IMO:
Sharpness
EF 50 1.4 > Sigma = 50L
Background Bokeh
Sigma > 50L > EF 50 1.4
Foreground Bokeh
50L > EF 50 1.4 > Sigma
Build Quality
50L > Sigma > EF50 1.4
Focus Ring Stiffness
Sigma > 50L > EF 50 1.4
Size of Bokeh Balls
50L > Sigma = EF 50 1.4
Weight
50L > Sigma > EF 50 1.4
Canon 50 1.4 @ f/1.4
http://www.riseofx.com/IMG_1252.jpg
Canon 50 1.4 @ f/2.2
http://www.riseofx.com/IMG_1251.jpg
Sigma 50 @ 1.4
http://www.riseofx.com/IMG_1253.jpg
Sigma 50 @ 2.2
http://www.riseofx.com/IMG_1254.jpg
The canon 50 1.4 exhibits a decidedly nervous bokeh, though it settles down slightly when stopped down. The Sigma, in comparison, is much creamier. The sigma also has a wider FoV than either of the Canon 50s, in addition to a slightly warmer color temperature. Unfortunately, the Sigma has the potential to have foreground bokeh that's as nervous as the Canon 50 1.4's background bokeh and this was kind of a game breaker for me.
The build quality is leagues better on the sigma than the canon 50 1.4, the latter of which feels as if the focus ring is prone to fall off at any given moment. However, the sigma takes the opposite end of the spectrum here with the focus ring being TOO stiff. The amount of effort required on the focus ring makes using it for video or manual focusing slightly awkward; the 50L, however, is just right.
The biggest issue is that the 50L and Sigma both suffer from focus shift when stopping down. In my experience the canon 50 1.4 is the only one that focuses consistently across f-stops. If you're looking for a do-it-all prime then the 50 1.4 is probably your best bet. The 50L and Sigma 50s are a bit more application specific (read: wide open, all the time).
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