The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron AF 28-75mm f2.8 XR LD and the Schneider PC 28mm f2.8 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. Tamron AF 28-75mm f2.8 XR LD is the longer of the two lenses at 92mm. The Schneider PC 28mm f2.8 with a length of 89mm, is 3mm shorter. On the other hand, the Schneider PC 28mm f2.8 has a larger diameter of 75mm compared to the Tamron AF 28-75mm f2.8 XR LD's 73mm 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. Tamron AF 28-75mm f2.8 XR LD weighs 510g, which means it is 55g (9%) lighter than the Schneider PC 28mm f2.8 which has a weight of 565g.
Filter Threads
Both the Tamron AF 28-75mm f2.8 XR LD and the Schneider PC 28mm f2.8 have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron AF 28-75mm f2.8 XR LD and the Schneider PC 28mm f2.8 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.
Tamron AF 28-75mm f2.8 XR LD is also available in the Canon EF , Nikon F (FX) and Sony Alpha mounts.
Schneider PC 28mm f2.8 is also available in Canon EF , Sony Alpha and Nikon F (FX) mounts.
Focal Range
Tamron AF 28-75mm f2.8 XR LD has a focal range of 28-75mm and
2.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 112.5mm.
On the other hand, the Schneider PC 28mm f2.8 is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 42mm.
