The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Schneider PC-TS 4.5/90 and the Hartblei 40mm F4 IF TS 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. Schneider PC-TS 4.5/90 weighs 1110g, which means it is 440g (28%) lighter than the Hartblei 40mm F4 IF TS which has a weight of 1550g.
Below you can find the dimension and weight table of the Perspective Control Prime Lenses in Pentax KAF Mount for size comparison purposes.
PC Lenses in Pentax KAF Mount for Size Comparison
Filter Threads
The Schneider PC-TS 4.5/90 has a filter size of 95mm whereas the Hartblei 40mm F4 IF TS has a 86mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 95mm filters that we recommend you to consider for the Schneider PC-TS 4.5/90:
And these are the 86mm filters that we recommend for the Hartblei 40mm F4 IF TS:
Lens Mounts
Both the Schneider PC-TS 4.5/90 and the Hartblei 40mm F4 IF TS has the same Pentax KAF lens mount. Some of the latest released cameras that are compatible with the Pentax KAF lenses are Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III.
Schneider PC-TS 4.5/90 is also available in Canon EF , Nikon F (FX) and Sony Alpha mounts.
Hartblei 40mm F4 IF TS is also available in Canon EF , Sony Alpha and Nikon F (FX) mounts.
Focal Range
Schneider PC-TS 4.5/90 is a prime lens with fixed focal lenght of 90mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
135mm.
On the other hand, the Hartblei 40mm F4 IF TS is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 60mm.