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 Panasonic Leica 14-50mm F2.8-3.5 OIS 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. Panasonic Leica 14-50mm F2.8-3.5 OIS is the longer of the two lenses at 103mm. The Sigma 30mm F1.4 EX DC HSM with a length of 59mm, is 44mm shorter. Besides being longer, the Panasonic Leica 14-50mm F2.8-3.5 OIS also has a larger diameter of 79mm 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 60g (12%) lighter than the Panasonic Leica 14-50mm F2.8-3.5 OIS which has a weight of 490g.
Filter Threads
The Sigma 30mm F1.4 EX DC HSM has a filter size of 62mm whereas the Panasonic Leica 14-50mm F2.8-3.5 OIS 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 Panasonic Leica 14-50mm F2.8-3.5 OIS:
Lens Mounts
Both the Sigma 30mm F1.4 EX DC HSM and the Panasonic Leica 14-50mm F2.8-3.5 OIS has the same Four Thirds lens mount. Some of the latest released cameras that are compatible with the Four Thirds lenses are , and .
Sigma 30mm F1.4 EX DC HSM is also available in the Canon EF-S , Nikon F (DX), Pentax KAF, Sony Alpha 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 Panasonic Leica 14-50mm F2.8-3.5 OIS has a focal range of 14-50mm and 3.6X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28-100mm when used on a FourThirds format camera.
