The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 30mm F1.4 EX DC HSM and the Sony 24mm F2 SSM CZ 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. Sony 24mm F2 SSM CZ is the longer of the two lenses at 76mm. The Sigma 30mm F1.4 EX DC HSM with a length of 59mm, is 17mm shorter. Besides being longer, the Sony 24mm F2 SSM CZ also has a larger diameter of 78mm compared to the Sigma 30mm F1.4 EX DC HSM's 77mm 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. Sigma 30mm F1.4 EX DC HSM weighs 430g, which means it is 125g (22%) lighter than the Sony 24mm F2 SSM CZ which has a weight of 555g.
Filter Threads
The Sigma 30mm F1.4 EX DC HSM has a filter size of 62mm whereas the Sony 24mm F2 SSM CZ has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Sigma 30mm F1.4 EX DC HSM:
And these are the 72mm filters that we recommend for the Sony 24mm F2 SSM CZ:
Lens Mounts
Both the Sigma 30mm F1.4 EX DC HSM and the Sony 24mm F2 SSM CZ has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A68, Sony A77 II and Sony A58.
Sigma 30mm F1.4 EX DC HSM is also available in Canon EF-S , Nikon F (DX), Four Thirds, Pentax KAF and Sigma SA mounts.
Focal Range
Sigma 30mm F1.4 EX DC HSM 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.
On the other hand, the Sony 24mm F2 SSM CZ is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36mm.