The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 23mm F1.4 DC DN C and the Panasonic S 18mm F1.8 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 S 18mm F1.8 is the longer of the two lenses at 82mm. The Sigma 23mm F1.4 DC DN C with a length of 77mm, is 5mm shorter. Besides being longer, the Panasonic S 18mm F1.8 also has a larger diameter of 74mm compared to the Sigma 23mm F1.4 DC DN C's 66mm diameter.
Below you can find a scaled side-by-side image of Sigma 23mm F1.4 DC DN C and Panasonic S 18mm F1.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 23mm F1.4 DC DN C and the Panasonic S 18mm F1.8 Size and Weight 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.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica L Mount for size comparison purposes.
Wideangle Lenses in Leica L Mount for Size Comparison
Filter Threads
The Sigma 23mm F1.4 DC DN C has a filter size of 52mm whereas the Panasonic S 18mm F1.8 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 52mm filters that we recommend you to consider for the Sigma 23mm F1.4 DC DN C:
And these are the 67mm filters that we recommend for the Panasonic S 18mm F1.8:
Lens Mounts
Both the Sigma 23mm F1.4 DC DN C and the Panasonic S 18mm F1.8 has the same Leica L lens mount . Some of the latest released cameras that are compatible with the Leica L lenses are Leica TL2 , Leica TL and Leica T Typ 701 .
Sigma 23mm F1.4 DC DN C is also available in the Sony E and Fujifilm X mounts.
Focal Range
Sigma 23mm F1.4 DC DN C is a prime lens with fixed focal lenght of 23mm which has an effective (full-frame 35mm equivalent) focal range of
34.5mm when used on a APS-C / DX format camera.
On the other hand, the Panasonic S 18mm F1.8 is a prime lens with fixed focal lenght of 18mm.