The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 85mm f1.4 and the Tamron 70-300 F4.5-6.3 Di III Z 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 70-300 F4.5-6.3 Di III Z is the longer of the two lenses at 148mm. The Zeiss Otus 85mm f1.4 with a length of 128mm, is 20mm shorter. On the other hand, the Zeiss Otus 85mm f1.4 has a larger diameter of 88mm compared to the Tamron 70-300 F4.5-6.3 Di III Z's 77mm 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 70-300 F4.5-6.3 Di III Z weighs 545g, 47% (495g) lighter than the Zeiss Otus 85mm f1.4's weight of 1040g.
Filter Threads
The Zeiss Otus 85mm f1.4 has a filter size of 77mm whereas the Tamron 70-300 F4.5-6.3 Di III Z has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Zeiss Otus 85mm f1.4:
And these are the 67mm filters that we recommend for the Tamron 70-300 F4.5-6.3 Di III Z:
Lens Mounts
Both the Zeiss Otus 85mm f1.4 and the Tamron 70-300 F4.5-6.3 Di III Z has the same Nikon Z lens mount. Some of the latest released cameras that are compatible with the Nikon Z lenses are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z.
Zeiss Otus 85mm f1.4 is also available in the Canon EF , Nikon F (FX), Sony E and Canon RF mounts.
Focal Range
Zeiss Otus 85mm f1.4 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
127.5mm.
On the other hand, the Tamron 70-300 F4.5-6.3 Di III Z has a focal range of 70-300mm and 4.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 450mm.
