The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 135mm f2.0L USM and the Hartblei Macro 120mm F4 TS 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. Canon 135mm f2.0L USM is the longer of the two lenses at 112mm. The Hartblei Macro 120mm F4 TS with a length of 106mm, is 6mm shorter. On the other hand, the Hartblei Macro 120mm F4 TS has a larger diameter of 89mm compared to the Canon 135mm f2.0L USM'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. Canon 135mm f2.0L USM weighs 750g, which means it is 215g (22%) lighter than the Hartblei Macro 120mm F4 TS which has a weight of 965g.
Filter Threads
Both the Canon 135mm f2.0L USM and the Hartblei Macro 120mm F4 TS have the same Filter thread size of 72mm.
Below are links to the 72mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Canon 135mm f2.0L USM and the Hartblei Macro 120mm F4 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 Macro 120mm F4 TS is also available in Pentax KAF , Sony Alpha and Nikon F (FX) mounts.
Focal Range
Canon 135mm f2.0L USM is a prime lens with fixed focal lenght of 135mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
216mm.
On the other hand, the Hartblei Macro 120mm F4 TS is a prime lens with fixed focal lenght of 121mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 193.6mm.