The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70mm F2.8 DG Macro and the Hartblei 80mm F2.8 IF TS for their suitability to various photography scenarios:
Size and Weight Comparison
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sigma 70mm F2.8 DG Macro weighs 515g, which means it is 335g (39%) lighter than the Hartblei 80mm F2.8 IF TS which has a weight of 850g.
Lens Mounts
Both Sigma 70mm F2.8 DG Macro and Hartblei 80mm F2.8 IF TS has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Sigma 70mm F2.8 DG Macro is also available in Canon EF , Sigma SA and Sony E mounts.
Hartblei 80mm F2.8 IF TS is also available in Canon EF , Pentax KAF and Sony Alpha mounts.
Focal Range
Sigma 70mm F2.8 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 an 35mm (FF) equivalent of 105mm.
Hartblei 80mm F2.8 IF TS is a prime lens with fixed focal lenght of 80mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 120mm.