The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander SEPTON 40mm f2 and the Tamron 70-200mm f2.8 VC USD 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 70-200mm f2.8 VC USD is the longer of the two lenses at 197mm. The Voigtlander SEPTON 40mm f2 with a length of 30mm, is 167mm shorter. Besides being longer, the Tamron 70-200mm f2.8 VC USD also has a larger diameter of 86mm compared to the Voigtlander SEPTON 40mm f2's 62mm 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. Voigtlander SEPTON 40mm f2 weighs 165g, which means it is 1305g (88%) lighter than the Tamron 70-200mm f2.8 VC USD which has a weight of 1470g.
Filter Threads
The Voigtlander SEPTON 40mm f2 has a filter size of 52mm whereas the Tamron 70-200mm f2.8 VC USD has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the Voigtlander SEPTON 40mm f2:
And these are the 77mm filters that we recommend for the Tamron 70-200mm f2.8 VC USD:
Lens Mounts
The Voigtlander SEPTON 40mm f2 has the Sony E lens mount whereas the Tamron 70-200mm f2.8 VC USD has the Sony Alpha 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 Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Voigtlander SEPTON 40mm f2 is also available in the Nikon Z mount.
Tamron 70-200mm f2.8 VC USD is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Voigtlander SEPTON 40mm f2 is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
60mm.
On the other hand, the Tamron 70-200mm f2.8 VC USD has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 300mm.
