The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 135mm f1.8 FE and the Tamron 70-300 F4.5-6.3 Di III 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 is the longer of the two lenses at 148mm. The Viltrox 135mm f1.8 FE with a length of 146mm, is 2mm shorter. On the other hand, the Viltrox 135mm f1.8 FE has a larger diameter of 93mm compared to the Tamron 70-300 F4.5-6.3 Di III's 77mm diameter.
Below you can find a scaled side-by-side image of Viltrox 135mm f1.8 FE and Tamron 70-300 F4.5-6.3 Di III to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox 135mm f1.8 FE and the Tamron 70-300 F4.5-6.3 Di III Size and Weight 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 weighs 545g, 55% (690g) lighter than the Viltrox 135mm f1.8 FE's weight of 1235g.
Filter Threads
The Viltrox 135mm f1.8 FE has a filter size of 82mm whereas the Tamron 70-300 F4.5-6.3 Di III 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 82mm filters that we recommend you to consider for the Viltrox 135mm f1.8 FE:
And these are the 67mm filters that we recommend for the Tamron 70-300 F4.5-6.3 Di III:
Lens Mounts
Both the Viltrox 135mm f1.8 FE and the Tamron 70-300 F4.5-6.3 Di III 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 .
Focal Range
Viltrox 135mm f1.8 FE is a prime lens with fixed focal lenght of 135mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
202.5mm .
On the other hand, the Tamron 70-300 F4.5-6.3 Di III 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 .
