The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Schneider PC-TS 2.8/50 and the Schneider PC-TS 4.5/90 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. Schneider PC-TS 4.5/90 is the longer of the two lenses at 139mm. The Schneider PC-TS 2.8/50 with a length of 128mm, is 11mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 108mm.
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, 20% (290g) lighter than the Schneider PC-TS 2.8/50's weight of 1400g.
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
Both the Schneider PC-TS 2.8/50 and the Schneider PC-TS 4.5/90 have the same Filter thread size of 95mm.
Below are links to the 95mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Schneider PC-TS 2.8/50 and the Schneider PC-TS 4.5/90 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 Mono, Pentax KF and Pentax K-3 III.
Schneider PC-TS 2.8/50 is also available in the Canon EF , Nikon F (FX) and Sony Alpha mounts.
Schneider PC-TS 4.5/90 is also available in Canon EF , Nikon F (FX) and Sony Alpha mounts.
Focal Range
Schneider PC-TS 2.8/50 is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
75mm.
On the other hand, the 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.