The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-500mm F5-6.3 and the Tamron 150-600mm F5-6.3 Di VC USD G2 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. Tamron 150-600mm F5-6.3 Di VC USD G2 is the longer of the two lenses at 258mm. The Sigma 150-500mm F5-6.3 with a length of 252mm, is 6mm shorter. Besides being longer, the Tamron 150-600mm F5-6.3 Di VC USD G2 also has a larger diameter of 106mm compared to the Sigma 150-500mm F5-6.3's 95mm 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. Sigma 150-500mm F5-6.3 weighs 1780g, which means it is 230g (11%) lighter than the Tamron 150-600mm F5-6.3 Di VC USD G2 which has a weight of 2010g.
Filter Threads
The Sigma 150-500mm F5-6.3 has a filter size of 86mm whereas the Tamron 150-600mm F5-6.3 Di VC USD G2 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 86mm filters that we recommend you to consider for the Sigma 150-500mm F5-6.3:
And these are the 95mm filters that we recommend for the Tamron 150-600mm F5-6.3 Di VC USD G2:
Lens Mounts
The Sigma 150-500mm F5-6.3 has the Pentax KAF3 lens mount whereas the Tamron 150-600mm F5-6.3 Di VC USD G2 has the Sony Alpha lens mount. Some of the latest released cameras that are compatible with these mounts are Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF3 Mount and Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Sigma 150-500mm F5-6.3 is also available in the Canon EF , Nikon F (FX), Sony Alpha and Sigma SA mounts.
Tamron 150-600mm F5-6.3 Di VC USD G2 is also available in Nikon F (FX) and Canon EF mounts.
Focal Range
Sigma 150-500mm F5-6.3 has a focal range of 150-500mm and
3.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
225 - 750mm.
On the other hand, the Tamron 150-600mm F5-6.3 Di VC USD G2 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.