The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron SP 35mm F1.4 Di USD and the Zeiss Milvus 15mm F2.8 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. Tamron SP 35mm F1.4 Di USD weighs 805g, which means it is 142g (14%) lighter than the Zeiss Milvus 15mm F2.8 which has a weight of 947g.
Filter Threads
The Tamron SP 35mm F1.4 Di USD has a filter size of 72mm 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 72mm filters that we recommend you to consider for the Tamron SP 35mm F1.4 Di USD:
And these are the 95mm filters that we recommend for the Zeiss Milvus 15mm F2.8:
Lens Mounts
Both the Tamron SP 35mm F1.4 Di USD 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 1D X III, Canon 6D MII and Canon 5D MIV.
Tamron SP 35mm F1.4 Di USD is also available in Nikon F (FX) mount.
Zeiss Milvus 15mm F2.8 is also available in Nikon F (FX) mount.
Focal Range
Tamron SP 35mm F1.4 Di USD is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
56mm.
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.