The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70-300mm F4-5.6 DG OS and the Tamron AF 70-300mm f4-5.6 LD 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 70-300mm F4-5.6 DG OS is the longer of the two lenses at 126mm. The Tamron AF 70-300mm f4-5.6 LD with a length of 117mm, is 9mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 77mm.
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 AF 70-300mm f4-5.6 LD weighs 435g, 28% (175g) lighter than the Sigma 70-300mm F4-5.6 DG OS's weight of 610g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Nikon F (FX) Mount for size comparison purposes.
Telephoto Lenses in Nikon F (FX) Mount for Size Comparison
Filter Threads
The Sigma 70-300mm F4-5.6 DG OS has a filter size of 58mm whereas the Tamron AF 70-300mm f4-5.6 LD has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Sigma 70-300mm F4-5.6 DG OS:
And these are the 62mm filters that we recommend for the Tamron AF 70-300mm f4-5.6 LD:
Lens Mounts
Both the Sigma 70-300mm F4-5.6 DG OS and the Tamron AF 70-300mm f4-5.6 LD has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Sigma 70-300mm F4-5.6 DG OS is also available in Canon EF , Pentax KAF3, Sony Alpha and Sigma SA mounts.
Tamron AF 70-300mm f4-5.6 LD is also available in Canon EF , Sony Alpha and Pentax KAF mounts.
Focal Range
Both lenses have the same focal range of
70-300mm and the fastest aperture of
F4.0 - F5.6.