The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70mm F2.8 EX DG Macro and the Canon 60mm f2.8 Macro 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 70mm F2.8 EX DG Macro is the longer of the two lenses at 95mm. The Canon 60mm f2.8 Macro USM with a length of 70mm, is 25mm shorter. Besides being longer, the Sigma 70mm F2.8 EX DG Macro also has a larger diameter of 76mm compared to the Canon 60mm f2.8 Macro USM's 73mm 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 60mm f2.8 Macro USM weighs 335g, 36% (192g) lighter than the Sigma 70mm F2.8 EX DG Macro's weight of 527g.
Lens Mounts
The Sigma 70mm F2.8 EX DG Macro has the Canon EF lens mount whereas the Canon 60mm f2.8 Macro USM has the Canon EF-S lens mount. Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount.
Sigma 70mm F2.8 EX DG Macro is also available in the Nikon F (FX) , Pentax KAF, Sony Alpha and Sigma SA mounts.
Focal Range
Sigma 70mm F2.8 EX DG Macro is a prime lens with fixed focal lenght of 70mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
112mm.
On the other hand, the Canon 60mm f2.8 Macro USM is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of 96mm when used on a APS-C / DX format camera.