The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 16mm f2.0 and the Zeiss Milvus 15mm F2.8 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 15mm F2.8 is the longer of the two lenses at 100mm. The Samyang 16mm f2.0 with a length of 89mm, is 11mm shorter. Besides being longer, the Zeiss Milvus 15mm F2.8 also has a larger diameter of 102mm compared to the Samyang 16mm f2.0'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. Samyang 16mm f2.0 weighs 583g, which means it is 364g (38%) lighter than the Zeiss Milvus 15mm F2.8 which has a weight of 947g.
Filter Threads
The Samyang 16mm f2.0 has a filter size of 77mm whereas the Zeiss Milvus 15mm F2.8 has a 95mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Samyang 16mm f2.0:
And these are the 95mm filters that we recommend for the Zeiss Milvus 15mm F2.8:
Lens Mounts
Both the Samyang 16mm f2.0 and the Zeiss Milvus 15mm F2.8 has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon T8i, Canon 90D and Canon SL3.
Samyang 16mm f2.0 is also available in Canon EF-M , Fujifilm X, Nikon F (DX), Four Thirds, Micro Four Thirds, Pentax KAF, Sony Alpha, Sony E and Samsung NX mounts.
Zeiss Milvus 15mm F2.8 is also available in Nikon F (FX) mount.
Focal Range
Samyang 16mm f2.0 is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of
25.6mm when used on a APS-C / DX format camera.
On the other hand, the Zeiss Milvus 15mm F2.8 is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 24mm.