The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 40mm F2 and the OM ED 20mm F1.4 Pro 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. OM ED 20mm F1.4 Pro is the longer of the two lenses at 62mm. The Panasonic S 40mm F2 with a length of 41mm, is 21mm shorter. On the other hand, the Panasonic S 40mm F2 has a larger diameter of 69mm compared to the OM ED 20mm F1.4 Pro's 63mm diameter.
Below you can find a scaled side-by-side image of Panasonic S 40mm F2 and OM ED 20mm F1.4 Pro to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic S 40mm F2 and the OM ED 20mm F1.4 Pro 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. Panasonic S 40mm F2 weighs 144g, which means it is 103g (41%) lighter than the OM ED 20mm F1.4 Pro which has a weight of 247g.
Filter Threads
The Panasonic S 40mm F2 has a filter size of 62mm whereas the OM ED 20mm F1.4 Pro has a 58mm 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 Panasonic S 40mm F2:
And these are the 58mm filters that we recommend for the OM ED 20mm F1.4 Pro:
Lens Mounts
The Panasonic S 40mm F2 has the Leica L lens mount whereas the OM ED 20mm F1.4 Pro has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Panasonic S 40mm F2 is a prime lens with fixed focal lenght of 40mm.
On the other hand, the OM ED 20mm F1.4 Pro is a prime lens with fixed focal lenght of 20mm which has an effective (full-frame 35mm equivalent) focal range of 40mm when used on a FourThirds format camera.
