The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 300mm f2.8 GM and the Sigma 150-600mm F5-6.3 DG DN OS 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 150-600mm F5-6.3 DG DN OS is the longer of the two lenses at 266mm. The Sony FE 300mm f2.8 GM with a length of 264mm, is 2mm shorter. On the other hand, the Sony FE 300mm f2.8 GM has a larger diameter of 124mm compared to the Sigma 150-600mm F5-6.3 DG DN OS's 109mm diameter.
Below you can find a scaled side-by-side image of Sony FE 300mm f2.8 GM and Sigma 150-600mm F5-6.3 DG DN OS to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 300mm f2.8 GM and the Sigma 150-600mm F5-6.3 DG DN OS Size and Weight 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. Sony FE 300mm f2.8 GM weighs 1470g, which means it is 630g (30%) lighter than the Sigma 150-600mm F5-6.3 DG DN OS which has a weight of 2100g.
Filter Threads
The Sony FE 300mm f2.8 GM has a filter size of 41mm whereas the Sigma 150-600mm F5-6.3 DG DN OS has a 95mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 41mm filters that we recommend you to consider for the Sony FE 300mm f2.8 GM:
And these are the 95mm filters that we recommend for the Sigma 150-600mm F5-6.3 DG DN OS:
Lens Mounts
Both the Sony FE 300mm f2.8 GM and the Sigma 150-600mm F5-6.3 DG DN OS has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Sigma 150-600mm F5-6.3 DG DN OS is also available in Leica L mount.
Focal Range
Sony FE 300mm f2.8 GM is a prime lens with fixed focal lenght of 300mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
450mm .
On the other hand, the 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 .