The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Thypoch 75mm F1.4 M and the Leica APO 90mm f2 ASPH for their suitability to various photography scenarios:
Size and Weight Comparison
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 75mm F1.4 M weighs 372g, which means it is 128g (25%) lighter than the Leica APO 90mm f2 ASPH which has a weight of 500g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Leica M Mount for size comparison purposes.
Telephoto Lenses in Leica M Mount for Size Comparison
Filter Threads
The Thypoch 75mm F1.4 M has a filter size of 62mm whereas the Leica APO 90mm f2 ASPH has a 55mm 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 Thypoch 75mm F1.4 M:
And these are the 55mm filters that we recommend for the Leica APO 90mm f2 ASPH:
Lens Mounts
Both the Thypoch 75mm F1.4 M and the Leica APO 90mm f2 ASPH has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M EV1, Leica M11-D and Pixii Max.
Focal Range
Thypoch 75mm F1.4 M is a prime lens with fixed focal lenght of 75mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
112.5mm.
On the other hand, the Leica APO 90mm f2 ASPH is a prime lens with fixed focal lenght of 90mm.