The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Hartblei 40mm F4 IF TS and the Voigtlander 40mm F2 SL II 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. Voigtlander 40mm F2 SL II weighs 200g, 87% (1350g) lighter than the Hartblei 40mm F4 IF TS's weight of 1550g.
Filter Threads
The Hartblei 40mm F4 IF TS has a filter size of 86mm whereas the Voigtlander 40mm F2 SL II has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 86mm filters that we recommend you to consider for the Hartblei 40mm F4 IF TS:
And these are the 52mm filters that we recommend for the Voigtlander 40mm F2 SL II:
Lens Mounts
Both the Hartblei 40mm F4 IF TS and the Voigtlander 40mm F2 SL II 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 40mm F4 IF TS is also available in Canon EF , Pentax KAF and Sony Alpha mounts.
Voigtlander 40mm F2 SL II is also available in Canon EF and Pentax KAF mounts.
Focal Range
Both lenses have the same focal range of
40mm but while Hartblei 40mm F4 IF TS has the fastest aperture of
F4.0, the Voigtlander 40mm F2 SL II's widest aperture value is
F2.0.