The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Milvus 25mm F1.4 and the Nikon 20mm f1.8G ED 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. Zeiss Milvus 25mm F1.4 is the longer of the two lenses at 123mm. The Nikon 20mm f1.8G ED with a length of 81mm, is 42mm shorter. Besides being longer, the Zeiss Milvus 25mm F1.4 also has a larger diameter of 95mm compared to the Nikon 20mm f1.8G ED's 83mm 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. Nikon 20mm f1.8G ED weighs 355g, 71% (870g) lighter than the Zeiss Milvus 25mm F1.4's weight of 1225g.
Filter Threads
The Zeiss Milvus 25mm F1.4 has a filter size of 82mm whereas the Nikon 20mm f1.8G ED has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Zeiss Milvus 25mm F1.4:
And these are the 77mm filters that we recommend for the Nikon 20mm f1.8G ED:
Lens Mounts
The Zeiss Milvus 25mm F1.4 has the Nikon F (FX) lens mount whereas the Nikon 20mm f1.8G ED has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (DX) Mount.
Zeiss Milvus 25mm F1.4 is also available in Canon EF mount.
Focal Range
Zeiss Milvus 25mm F1.4 is a prime lens with fixed focal lenght of 25mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
37.5mm.
On the other hand, the Nikon 20mm f1.8G ED is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 30mm.