The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony 85mm F2.8 SAM 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. Sony 85mm F2.8 SAM weighs 175g, which means it is 675g (79%) lighter than the Hartblei 80mm F2.8 IF TS which has a weight of 850g.
Both Sony 85mm F2.8 SAM and Hartblei 80mm F2.8 IF TS has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Hartblei 80mm F2.8 IF TS is also available in Canon EF , Pentax KAF and Nikon F (FX) mounts.
Sony 85mm F2.8 SAM is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 127.5mm.
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.