The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans 135mm f1.8 L and the Tamron 70-180mm F2.8 Di G2 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 70-180mm F2.8 Di G2 is the longer of the two lenses at 157mm. The 7Artisans 135mm f1.8 L with a length of 136mm, is 21mm shorter. On the other hand, the 7Artisans 135mm f1.8 L has a larger diameter of 91mm compared to the Tamron 70-180mm F2.8 Di G2's 83mm 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 70-180mm F2.8 Di G2 weighs 855g, 15% (159g) lighter than the 7Artisans 135mm f1.8 L's weight of 1014g.
Filter Threads
The 7Artisans 135mm f1.8 L has a filter size of 82mm whereas the Tamron 70-180mm F2.8 Di G2 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 7Artisans 135mm f1.8 L:
And these are the 67mm filters that we recommend for the Tamron 70-180mm F2.8 Di G2:
Lens Mounts
The 7Artisans 135mm f1.8 L has the Leica L lens mount whereas the Tamron 70-180mm F2.8 Di G2 has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Tamron 70-180mm F2.8 Di G2 is also available in Nikon Z mount.
Focal Range
7Artisans 135mm f1.8 L 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 70-180mm F2.8 Di G2 has a focal range of 70-180mm and 2.6X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 270mm.
