The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax-D FA 85mm F1.4 ED SDM AW and the Voigtlander 75mm F1.8 Heliar Classic 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. Pentax-D FA 85mm F1.4 ED SDM AW is the longer of the two lenses at 124mm. The Voigtlander 75mm F1.8 Heliar Classic with a length of 74mm, is 50mm shorter. Besides being longer, the Pentax-D FA 85mm F1.4 ED SDM AW also has a larger diameter of 95mm compared to the Voigtlander 75mm F1.8 Heliar Classic's 58mm diameter.
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. Voigtlander 75mm F1.8 Heliar Classic weighs 427g, 65% (828g) lighter than the Pentax-D FA 85mm F1.4 ED SDM AW's weight of 1255g.
Lens Mounts
The Pentax-D FA 85mm F1.4 ED SDM AW has the Pentax KAF4 lens mount whereas the Voigtlander 75mm F1.8 Heliar Classic has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Pentax KAF4 Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Pentax-D FA 85mm F1.4 ED SDM AW 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 a 35mm (FF) equivalent of
127.5mm.
On the other hand, the Voigtlander 75mm F1.8 Heliar Classic is a prime lens with fixed focal lenght of 75mm.
