The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Irix 45mm F1.4 and the Canon TS-E 50mm F2.8L Macro 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. Irix 45mm F1.4 weighs 925g, which means it is 20g (2%) lighter than the Canon TS-E 50mm F2.8L Macro which has a weight of 945g.
Filter Threads
Both the Irix 45mm F1.4 and the Canon TS-E 50mm F2.8L Macro have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Irix 45mm F1.4 and the Canon TS-E 50mm F2.8L Macro 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.
Irix 45mm F1.4 is also available in Nikon F (FX) and Pentax KAF2 mounts.
Focal Range
Irix 45mm F1.4 is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
72mm.
On the other hand, the Canon TS-E 50mm F2.8L Macro is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 80mm.