The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-300mm f4-5.6 USD and the Sony 70-300mm F4.5-5.6 G SSM 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 70-300mm f4-5.6 USD is the longer of the two lenses at 143mm. The Sony 70-300mm F4.5-5.6 G SSM with a length of 136mm, is 7mm shorter. On the other hand, the Sony 70-300mm F4.5-5.6 G SSM has a larger diameter of 83mm compared to the Tamron 70-300mm f4-5.6 USD's 82mm 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. Sony 70-300mm F4.5-5.6 G SSM weighs 760g, 0% (5g) lighter than the Tamron 70-300mm f4-5.6 USD's weight of 765g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Sony Alpha Mount for size comparison purposes.
Telephoto Lenses in Sony Alpha Mount for Size Comparison
Filter Threads
Both the Tamron 70-300mm f4-5.6 USD and the Sony 70-300mm F4.5-5.6 G SSM have the same Filter thread size of 62mm.
Below are links to the 62mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 70-300mm f4-5.6 USD and the Sony 70-300mm F4.5-5.6 G SSM has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Focal Range
Both lenses have the same focal range of
70-300mm but while Tamron 70-300mm f4-5.6 USD has the fastest aperture of
F4.0 - F5.6, the Sony 70-300mm F4.5-5.6 G SSM's widest aperture value is
F4.5 - F5.6.