Sigma 50mm vs. Canon 24-70mm f/2.8 L Series A question to the experts. I own the canon L series 24-70mm f/2.8L. I am travelling to Japan soon and would like a superior 'low light' lens for the trip. Is the sigma going to blow me away with its ability to handle low light conditions while remaining sharp compared to my canon lens? Thank you!
The 24-70 is a fine lens. Probably the only difference you would see is two additional stops of light. If you are happy with the 24-70, you might consider the Canon 50/1.4, too. It's more likely to render color the same as the 24-70 (Canon used to call the 50/1.4 their "reference" lens, with all other lenses in the system designed to match it in color rendition as closely as possible. I use both those Canon lenses, haven't used the Sigma 50/1.4. I have read some reviews that the Sigma is sharper than the Canon prime wide open, but renders slightly different color (cooler effect). Both lenses are capable of nice bokeh, perhaps the edge goes to the Sigma. Build quality of the Sigma seems better, but only time will tell if it's actually more durable. Sigma includes the lens hood with the lens, with the Canon it's and additional, but very important, accessory.
Yes, the Sigma has better edge sharpness at wider apertures than the Canon, as I have owned both of them. I ultimately stayed with the Sigma due to the use of an aspherical element (large aperture edge sharpness), 9-blade iris for smooth bokeh and a very fast HSM focusing motor. Only drawbacks to this lens are weight and filter size (77mm).