The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 20-70mm F4 G and the Carl Zeiss Makro-Planar T2/50 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. Sony FE 20-70mm F4 G is the longer of the two lenses at 99mm. The Carl Zeiss Makro-Planar T2/50 with a length of 88mm, is 11mm shorter. Besides being longer, the Sony FE 20-70mm F4 G also has a larger diameter of 79mm compared to the Carl Zeiss Makro-Planar T2/50'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. Sony FE 20-70mm F4 G weighs 488g, which means it is 42g (7%) lighter than the Carl Zeiss Makro-Planar T2/50 which has a weight of 530g.
Filter Threads
The Sony FE 20-70mm F4 G has a filter size of 72mm whereas the Carl Zeiss Makro-Planar T2/50 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Sony FE 20-70mm F4 G:
And these are the 67mm filters that we recommend for the Carl Zeiss Makro-Planar T2/50:
Lens Mounts
The Sony FE 20-70mm F4 G has the Sony E lens mount whereas the Carl Zeiss Makro-Planar T2/50 has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Carl Zeiss Makro-Planar T2/50 is also available in Pentax KAF and Nikon F (FX) mounts.
Focal Range
Sony FE 20-70mm F4 G has a focal range of 20-70mm and
3.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
30 - 105mm.
On the other hand, the Carl Zeiss Makro-Planar T2/50 is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 80mm.
