The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 35mm F2.8 Di III OSD M1:2 and the Tamron 35mm F1.8 Di 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 35mm F1.8 Di VC USD is the longer of the two lenses at 81mm. The Tamron 35mm F2.8 Di III OSD M1:2 with a length of 64mm, is 17mm shorter. Besides being longer, the Tamron 35mm F1.8 Di VC USD also has a larger diameter of 80mm compared to the Tamron 35mm F2.8 Di III OSD M1:2's 73mm 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 35mm F2.8 Di III OSD M1:2 weighs 210g, which means it is 240g (53%) lighter than the Tamron 35mm F1.8 Di VC USD which has a weight of 450g.
Filter Threads
Both the Tamron 35mm F2.8 Di III OSD M1:2 and the Tamron 35mm F1.8 Di VC USD have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron 35mm F2.8 Di III OSD M1:2 has the Sony E lens mount whereas the Tamron 35mm F1.8 Di 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.
Tamron 35mm F1.8 Di VC USD is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
35mm but while Tamron 35mm F2.8 Di III OSD M1:2 has the fastest aperture of
F2.8, the Tamron 35mm F1.8 Di VC USD's widest aperture value is
F1.8.
