The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Thypoch 21mm f3.5 and the Voigtlander APO-LANTHAR 50mm f2 Z 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. Voigtlander APO-LANTHAR 50mm f2 Z is the longer of the two lenses at 64mm. The Thypoch 21mm f3.5 with a length of 35mm, is 29mm shorter. Besides being longer, the Voigtlander APO-LANTHAR 50mm f2 Z also has a larger diameter of 68mm 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, which means it is 216g (62%) lighter than the Voigtlander APO-LANTHAR 50mm f2 Z which has a weight of 347g.
Filter Threads
The Thypoch 21mm f3.5 has a filter size of 39mm whereas the Voigtlander APO-LANTHAR 50mm f2 Z 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 39mm filters that we recommend you to consider for the Thypoch 21mm f3.5:
And these are the 52mm filters that we recommend for the Voigtlander APO-LANTHAR 50mm f2 Z:
Lens Mounts
The Thypoch 21mm f3.5 has the Leica M lens mount whereas the Voigtlander APO-LANTHAR 50mm f2 Z has the Nikon Z lens mount. Some of the latest released cameras that are compatible with these mounts are Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount and Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount.
Focal Range
Thypoch 21mm f3.5 is a prime lens with fixed focal lenght of 21mm.
On the other hand, the Voigtlander APO-LANTHAR 50mm f2 Z is a prime lens with fixed focal lenght of 50mm.