The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7artisans 85mm f1.8 AF and the Tamron 17-50mm f4 Di III VXD 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 17-50mm f4 Di III VXD is the longer of the two lenses at 114mm. The 7artisans 85mm f1.8 AF with a length of 98mm, is 16mm shorter. Besides being longer, the Tamron 17-50mm f4 Di III VXD also has a larger diameter of 75mm compared to the 7artisans 85mm f1.8 AF's 72mm diameter.
Below you can find a scaled side-by-side image of 7artisans 85mm f1.8 AF and Tamron 17-50mm f4 Di III VXD to get a better idea of how their sizes compare in real life.
Comparison image of the 7artisans 85mm f1.8 AF and the Tamron 17-50mm f4 Di III VXD 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. 7artisans 85mm f1.8 AF weighs 452g, which means it is 8g (1%) lighter than the Tamron 17-50mm f4 Di III VXD which has a weight of 460g.
Filter Threads
The 7artisans 85mm f1.8 AF has a filter size of 62mm whereas the Tamron 17-50mm f4 Di III VXD 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 62mm filters that we recommend you to consider for the 7artisans 85mm f1.8 AF:
And these are the 67mm filters that we recommend for the Tamron 17-50mm f4 Di III VXD:
Lens Mounts
The 7artisans 85mm f1.8 AF has the Nikon Z lens mount whereas the Tamron 17-50mm f4 Di III VXD has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are Nikon ZR , Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Sony E and Leica L mounts.
Focal Range
7artisans 85mm f1.8 AF 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 17-50mm f4 Di III VXD has a focal range of 17-50mm and 3.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 25.5 - 75mm .
