The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70mm F2.8 EX DG HSM and the Canon 24-70mm f4L IS USM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 24-70mm F2.8 EX DG HSM is the longer of the two lenses at 95mm. The Canon 24-70mm f4L IS USM with a length of 93mm, is 2mm shorter. Besides being longer, the Sigma 24-70mm F2.8 EX DG HSM also has a larger diameter of 89mm compared to the Canon 24-70mm f4L IS USM's 83mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Canon 24-70mm f4L IS USM weighs 600g, 24% (190g) lighter than the Sigma 24-70mm F2.8 EX DG HSM's weight of 790g.
Filter Threads
The Sigma 24-70mm F2.8 EX DG HSM has a filter size of 82mm whereas the Canon 24-70mm f4L IS USM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sigma 24-70mm F2.8 EX DG HSM:
And these are the 77mm filters that we recommend for the Canon 24-70mm f4L IS USM:
Lens Mounts
The Sigma 24-70mm F2.8 EX DG HSM has the Sigma SA lens mount whereas the Canon 24-70mm f4L IS USM has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount and Canon 1D X III, Canon 6D MII and Canon 5D MIV for the Canon EF Mount.
Sigma 24-70mm F2.8 EX DG HSM is also available in Canon EF , Pentax KAF3, Sony Alpha and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
24-70mm but while Sigma 24-70mm F2.8 EX DG HSM has the fastest aperture of
F2.8, the Canon 24-70mm f4L IS USM's widest aperture value is
F4.0.