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 Carl Zeiss Makro-Planar T2/100 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 28-75mm F2.8 Di III is the longer of the two lenses at 117mm. The Carl Zeiss Makro-Planar T2/100 with a length of 113mm, is 4mm shorter. On the other hand, the Carl Zeiss Makro-Planar T2/100 has a larger diameter of 76mm 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 130g (19%) lighter than the Carl Zeiss Makro-Planar T2/100 which has a weight of 680g.
Filter Threads
Both the Tamron 28-75mm F2.8 Di III and the Carl Zeiss Makro-Planar T2/100 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
The Tamron 28-75mm F2.8 Di III has the Sony E lens mount whereas the Carl Zeiss Makro-Planar T2/100 has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Tamron 28-75mm F2.8 Di III is also available in the Sony E and Nikon Z mounts.
Carl Zeiss Makro-Planar T2/100 is also available in Canon EF and Nikon F (FX) 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 Carl Zeiss Makro-Planar T2/100 is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 150mm.
