The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Loxia 25mm F2.4 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. Zeiss Loxia 25mm F2.4 is the longer of the two lenses at 75mm. The Sony E 30mm F3.5 Macro with a length of 56mm, is 19mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 62mm.
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, 64% (255g) lighter than the Zeiss Loxia 25mm F2.4's weight of 393g.
Filter Threads
The Zeiss Loxia 25mm F2.4 has a filter size of 52mm 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 52mm filters that we recommend you to consider for the Zeiss Loxia 25mm F2.4:
And these are the 49mm filters that we recommend for the Sony E 30mm F3.5 Macro:
Lens Mounts
Both the Zeiss Loxia 25mm F2.4 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
Zeiss Loxia 25mm F2.4 is a prime lens with fixed focal lenght of 25mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
37.5mm.
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.