The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 15-30mm f2.8 VC USD and the Carl Zeiss Distagon T2/35 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 15-30mm f2.8 VC USD is the longer of the two lenses at 145mm. The Carl Zeiss Distagon T2/35 with a length of 99mm, is 46mm shorter. Besides being longer, the Tamron 15-30mm f2.8 VC USD also has a larger diameter of 98mm compared to the Carl Zeiss Distagon T2/35's 72mm 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. Carl Zeiss Distagon T2/35 weighs 570g, 48% (530g) lighter than the Tamron 15-30mm f2.8 VC USD's weight of 1100g.
Lens Mounts
The Tamron 15-30mm f2.8 VC USD has the Sony Alpha lens mount whereas the Carl Zeiss Distagon T2/35 has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount and Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Tamron 15-30mm f2.8 VC USD is also available in the Canon EF and Nikon F (FX) mounts.
Carl Zeiss Distagon T2/35 is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Tamron 15-30mm f2.8 VC USD has a focal range of 15-30mm and
2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
22.5 - 45mm.
On the other hand, the Carl Zeiss Distagon T2/35 is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 52.5mm.
