The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 200-500mm f5-6.3 LD and the Sigma 200-500mm F2.8 EX DG 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 200-500mm F2.8 EX DG is the longer of the two lenses at 726mm. The Tamron 200-500mm f5-6.3 LD with a length of 227mm, is 499mm shorter. Besides being longer, the Sigma 200-500mm F2.8 EX DG also has a larger diameter of 237mm compared to the Tamron 200-500mm f5-6.3 LD's 94mm 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. Tamron 200-500mm f5-6.3 LD weighs 1237g, which means it is 14463g (92%) lighter than the Sigma 200-500mm F2.8 EX DG which has a weight of 15700g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Canon EF Mount for size comparison purposes.
Super Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
The Tamron 200-500mm f5-6.3 LD has a filter size of 86mm whereas the Sigma 200-500mm F2.8 EX DG has a 72mm 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 Tamron 200-500mm f5-6.3 LD:
And these are the 72mm filters that we recommend for the Sigma 200-500mm F2.8 EX DG:
Lens Mounts
Both the Tamron 200-500mm f5-6.3 LD and the Sigma 200-500mm F2.8 EX DG has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Tamron 200-500mm f5-6.3 LD is also available in Nikon F (FX) and Sony Alpha mounts.
Sigma 200-500mm F2.8 EX DG is also available in Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
200-500mm but while Tamron 200-500mm f5-6.3 LD has the fastest aperture of
F5.0 - F6.3, the Sigma 200-500mm F2.8 EX DG's widest aperture value is
F2.8.