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 Sony E 30mm F3.5 Macro 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 F2.8 Di III OSD M1:2 is the longer of the two lenses at 64mm. The Sony E 30mm F3.5 Macro with a length of 56mm, is 8mm shorter. Besides being longer, the Tamron 35mm F2.8 Di III OSD M1:2 also has a larger diameter of 73mm compared to the Sony E 30mm F3.5 Macro'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. Sony E 30mm F3.5 Macro weighs 138g, 34% (72g) lighter than the Tamron 35mm F2.8 Di III OSD M1:2's weight of 210g.
Filter Threads
The Tamron 35mm F2.8 Di III OSD M1:2 has a filter size of 67mm whereas the Sony E 30mm F3.5 Macro has a 49mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Tamron 35mm F2.8 Di III OSD M1:2:
And these are the 49mm filters that we recommend for the Sony E 30mm F3.5 Macro:
Lens Mounts
Both the Tamron 35mm F2.8 Di III OSD M1:2 and the Sony E 30mm F3.5 Macro has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Focal Range
Tamron 35mm F2.8 Di III OSD M1:2 is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
52.5mm.
On the other hand, the Sony E 30mm F3.5 Macro is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 45mm when used on a APS-C / DX format camera.