The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang XP 50mm F1.2 and the Hartblei 40mm F4 IF TS 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. Samyang XP 50mm F1.2 weighs 1200g, which means it is 350g (22%) lighter than the Hartblei 40mm F4 IF TS which has a weight of 1550g.
Filter Threads
Both the Samyang XP 50mm F1.2 and the Hartblei 40mm F4 IF TS have the same Filter thread size of 86mm.
Below are links to the 86mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Samyang XP 50mm F1.2 and the Hartblei 40mm F4 IF TS 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.
Hartblei 40mm F4 IF TS is also available in Pentax KAF , Sony Alpha and Nikon F (FX) mounts.
Focal Range
Samyang XP 50mm F1.2 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.
On the other hand, the Hartblei 40mm F4 IF TS is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 64mm.