The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70mm F2.8 EX DG Macro and the Carl Zeiss Makro-Planar T2/100 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. Carl Zeiss Makro-Planar T2/100 is the longer of the two lenses at 113mm. The Sigma 70mm F2.8 EX DG Macro with a length of 95mm, is 18mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 76mm.
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. Sigma 70mm F2.8 EX DG Macro weighs 527g, which means it is 153g (22%) lighter than the Carl Zeiss Makro-Planar T2/100 which has a weight of 680g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Pentax KAF Mount for size comparison purposes.
Macro Lenses in Pentax KAF Mount for Size Comparison
Lens Mounts
Both the Sigma 70mm F2.8 EX DG Macro and the Carl Zeiss Makro-Planar T2/100 has the same Pentax KAF lens mount. Some of the latest released cameras that are compatible with the Pentax KAF lenses are Pentax K-3 III Mono, Pentax KF and Pentax K-3 III.
Sigma 70mm F2.8 EX DG Macro is also available in the Canon EF , Nikon F (FX), Sony Alpha and Sigma SA mounts.
Carl Zeiss Makro-Planar T2/100 is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Sigma 70mm F2.8 EX DG Macro is a prime lens with fixed focal lenght of 70mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105mm.
On the other hand, the Carl Zeiss Makro-Planar T2/100 is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 150mm.
