The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Hartblei 80mm F2.8 IF TS and the Sigma 70-200mm F2.8 EX DG OS HSM 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. Hartblei 80mm F2.8 IF TS weighs 850g, which means it is 580g (40%) lighter than the Sigma 70-200mm F2.8 EX DG OS HSM which has a weight of 1430g.
Filter Threads
The Hartblei 80mm F2.8 IF TS has a filter size of 72mm whereas the Sigma 70-200mm F2.8 EX DG OS HSM has a 77mm 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 Hartblei 80mm F2.8 IF TS:
And these are the 77mm filters that we recommend for the Sigma 70-200mm F2.8 EX DG OS HSM:
Lens Mounts
Both the Hartblei 80mm F2.8 IF TS and the Sigma 70-200mm F2.8 EX DG OS HSM 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.
Hartblei 80mm F2.8 IF TS is also available in Canon EF , Pentax KAF and Sony Alpha mounts.
Sigma 70-200mm F2.8 EX DG OS HSM is also available in Canon EF , Pentax KAF3, Sony Alpha and Sigma SA mounts.
Focal Range
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 a 35mm (FF) equivalent of
120mm.
On the other hand, the Sigma 70-200mm F2.8 EX DG OS HSM has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 300mm.