The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-200mm F2.8-5.6 Di III and the Sony E PZ 18-200mm F3.5-6.3 OSS 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 28-200mm F2.8-5.6 Di III is the longer of the two lenses at 117mm. The Sony E PZ 18-200mm F3.5-6.3 OSS with a length of 99mm, is 18mm shorter. On the other hand, the Sony E PZ 18-200mm F3.5-6.3 OSS has a larger diameter of 93mm compared to the Tamron 28-200mm F2.8-5.6 Di III's 74mm 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 28-200mm F2.8-5.6 Di III weighs 576g, which means it is 73g (11%) lighter than the Sony E PZ 18-200mm F3.5-6.3 OSS which has a weight of 649g.
Below you can find the dimension and weight table of the SuperZoom Lenses in Sony E Mount for size comparison purposes.
Superzoom Lenses in Sony E Mount for Size Comparison
Filter Threads
Both the Tamron 28-200mm F2.8-5.6 Di III and the Sony E PZ 18-200mm F3.5-6.3 OSS have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 28-200mm F2.8-5.6 Di III and the Sony E PZ 18-200mm F3.5-6.3 OSS has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Focal Range
Tamron 28-200mm F2.8-5.6 Di III has a focal range of 28-200mm and
7.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 300mm.
On the other hand, the Sony E PZ 18-200mm F3.5-6.3 OSS has a focal range of 18-200mm and 11.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-300mm when used on a APS-C / DX format camera.