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 Thypoch 21mm f3.5 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 40mm F2 is the longer of the two lenses at 41mm. The Thypoch 21mm f3.5 with a length of 35mm, is 6mm shorter. Besides being longer, the Panasonic S 40mm F2 also has a larger diameter of 69mm compared to the Thypoch 21mm f3.5's 58mm 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. Thypoch 21mm f3.5 weighs 131g, 9% (13g) lighter than the Panasonic S 40mm F2's weight of 144g.
Filter Threads
The Panasonic S 40mm F2 has a filter size of 62mm whereas the Thypoch 21mm f3.5 has a 39mm 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 39mm filters that we recommend for the Thypoch 21mm f3.5:
Lens Mounts
The Panasonic S 40mm F2 has the Leica L lens mount whereas the Thypoch 21mm f3.5 has the Leica M 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 Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Panasonic S 40mm F2 is a prime lens with fixed focal lenght of 40mm.
On the other hand, the Thypoch 21mm f3.5 is a prime lens with fixed focal lenght of 21mm.
