The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-75mm F2.8 Di III and the Sony FE PZ 28-135mm F4 G 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. Sony FE PZ 28-135mm F4 G is the longer of the two lenses at 163mm. The Tamron 28-75mm F2.8 Di III with a length of 117mm, is 46mm shorter. Besides being longer, the Sony FE PZ 28-135mm F4 G also has a larger diameter of 105mm compared to the Tamron 28-75mm F2.8 Di III's 73mm 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 28-75mm F2.8 Di III weighs 550g, which means it is 665g (54%) lighter than the Sony FE PZ 28-135mm F4 G which has a weight of 1215g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Sony E Mount for size comparison purposes.
Standard Lenses in Sony E Mount for Size Comparison
Filter Threads
The Tamron 28-75mm F2.8 Di III has a filter size of 67mm whereas the Sony FE PZ 28-135mm F4 G 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 67mm filters that we recommend you to consider for the Tamron 28-75mm F2.8 Di III:
And these are the 95mm filters that we recommend for the Sony FE PZ 28-135mm F4 G:
Lens Mounts
Both the Tamron 28-75mm F2.8 Di III and the Sony FE PZ 28-135mm F4 G 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.
Tamron 28-75mm F2.8 Di III is also available in the Sony E and Nikon Z mounts.
Focal Range
Tamron 28-75mm F2.8 Di III has a focal range of 28-75mm and
2.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 112.5mm.
On the other hand, the Sony FE PZ 28-135mm F4 G has a focal range of 28-135mm and 4.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 42 - 202.5mm.
