The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony CZ T* 50mm F1.4 ZA SSM and the Tamron 45mm 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 45mm F1.8 Di VC USD is the longer of the two lenses at 92mm. The Sony CZ T* 50mm F1.4 ZA SSM with a length of 72mm, is 20mm shorter. On the other hand, the Sony CZ T* 50mm F1.4 ZA SSM has a larger diameter of 81mm compared to the Tamron 45mm F1.8 Di VC USD's 80mm 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 CZ T* 50mm F1.4 ZA SSM weighs 518g, which means it is 2g (0%) lighter than the Tamron 45mm F1.8 Di VC USD which has a weight of 520g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Sony Alpha Mount for size comparison purposes.
Standard Lenses in Sony Alpha Mount for Size Comparison
Filter Threads
The Sony CZ T* 50mm F1.4 ZA SSM has a filter size of 72mm whereas the Tamron 45mm F1.8 Di VC USD 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 72mm filters that we recommend you to consider for the Sony CZ T* 50mm F1.4 ZA SSM:
And these are the 67mm filters that we recommend for the Tamron 45mm F1.8 Di VC USD:
Lens Mounts
Both the Sony CZ T* 50mm F1.4 ZA SSM and the Tamron 45mm F1.8 Di VC USD has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Tamron 45mm F1.8 Di VC USD is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Sony CZ T* 50mm F1.4 ZA SSM is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
75mm.
On the other hand, the Tamron 45mm F1.8 Di VC USD is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 67.5mm.