The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-600mm F5-6.3 DG DN OS and the Sony FE 70-200mm F2.8 GM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Sigma 150-600mm F5-6.3 DG DN OS is the longer of the two lenses at 266mm. The Sony FE 70-200mm F2.8 GM with a length of 200mm, is 66mm shorter. Besides being longer, the Sigma 150-600mm F5-6.3 DG DN OS also has a larger diameter of 109mm compared to the Sony FE 70-200mm F2.8 GM's 88mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sony FE 70-200mm F2.8 GM weighs 1480g, 29% (620g) lighter than the Sigma 150-600mm F5-6.3 DG DN OS's weight of 2100g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Sony E Mount for size comparison purposes.
Telephoto Zoom Lenses in Sony E Mount for Size Comparison
Lens Mounts
Both the Sigma 150-600mm F5-6.3 DG DN OS and the Sony FE 70-200mm F2.8 GM has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7R V, Sony FX30 and Sony A7 IV.
Sigma 150-600mm F5-6.3 DG DN OS is also available in Leica L mount.
Focal Range
Sigma 150-600mm F5-6.3 DG DN OS has a focal range of 150-600mm and 4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 225 - 900mm.
Sony FE 70-200mm F2.8 GM has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 300mm.