The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Carl Zeiss Planar T1,4/85 and the Canon 100mm f2.8L Macro IS USM 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 100mm f2.8L Macro IS USM is the longer of the two lenses at 123mm. The Carl Zeiss Planar T1,4/85 with a length of 85mm, is 38mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 78mm.
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 100mm f2.8L Macro IS USM weighs 625g, 10% (75g) lighter than the Carl Zeiss Planar T1,4/85's weight of 700g.
Filter Threads
The Carl Zeiss Planar T1,4/85 has a filter size of 72mm whereas the Canon 100mm f2.8L Macro IS USM has a 67mm 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 Carl Zeiss Planar T1,4/85:
And these are the 67mm filters that we recommend for the Canon 100mm f2.8L Macro IS USM:
Lens Mounts
Both the Carl Zeiss Planar T1,4/85 and the Canon 100mm f2.8L Macro IS USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Carl Zeiss Planar T1,4/85 is also available in the Pentax KAF and Nikon F (FX) mounts.
Focal Range
Carl Zeiss Planar T1,4/85 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
136mm.
On the other hand, the Canon 100mm f2.8L Macro IS USM is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 160mm.
