The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony E 35mm F1.8 OSS and the Sigma 30mm F1.4 C 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. Sigma 30mm F1.4 C is the longer of the two lenses at 73mm. The Sony E 35mm F1.8 OSS with a length of 45mm, is 28mm shorter. Besides being longer, the Sigma 30mm F1.4 C also has a larger diameter of 65mm compared to the Sony E 35mm F1.8 OSS's 63mm diameter.
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Below you can find a scaled side-by-side image of Sony E 35mm F1.8 OSS and Sigma 30mm F1.4 C to get a better idea of how their sizes compare in real life.
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 35mm F1.8 OSS weighs 155g, which means it is 110g (41%) lighter than the Sigma 30mm F1.4 C which has a weight of 265g.
Filter Threads
The Sony E 35mm F1.8 OSS has a filter size of 49mm whereas the Sigma 30mm F1.4 C has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 49mm filters that we recommend you to consider for the Sony E 35mm F1.8 OSS:
And these are the 52mm filters that we recommend for the Sigma 30mm F1.4 C:
Lens Mounts
Both the Sony E 35mm F1.8 OSS and the Sigma 30mm F1.4 C has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A6700, Sony FX30 and Sony ZV-E10.
Sigma 30mm F1.4 C is also available in Micro Four Thirds , Fujifilm X and Nikon Z mounts.
Focal Range
Sony E 35mm F1.8 OSS is a prime lens with fixed focal lenght of 35mm which has an effective (full-frame 35mm equivalent) focal range of
52.5mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 30mm F1.4 C 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.