The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Carl Zeiss Planar T1,4/50 and the Carl Zeiss Distagon T2/25 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. Carl Zeiss Distagon T2/25 is the longer of the two lenses at 95mm. The Carl Zeiss Planar T1,4/50 with a length of 69mm, is 26mm shorter. Besides being longer, the Carl Zeiss Distagon T2/25 also has a larger diameter of 71mm compared to the Carl Zeiss Planar T1,4/50's 66mm 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 Planar T1,4/50 weighs 350g, which means it is 220g (38%) lighter than the Carl Zeiss Distagon T2/25 which has a weight of 570g.
Filter Threads
The Carl Zeiss Planar T1,4/50 has a filter size of 58mm whereas the Carl Zeiss Distagon T2/25 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 58mm filters that we recommend you to consider for the Carl Zeiss Planar T1,4/50:
And these are the 67mm filters that we recommend for the Carl Zeiss Distagon T2/25:
Lens Mounts
The Carl Zeiss Planar T1,4/50 has the Canon EF lens mount whereas the Carl Zeiss Distagon T2/25 has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Canon 1D X III, Canon 6D MII and Canon 5D MIV for the Canon EF Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Carl Zeiss Planar T1,4/50 is also available in Pentax KAF and Nikon F (FX) mounts.
Carl Zeiss Distagon T2/25 is also available in Canon EF mount.
Focal Range
Carl Zeiss Planar T1,4/50 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.
On the other hand, the Carl Zeiss Distagon T2/25 is a prime lens with fixed focal lenght of 25mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 37.5mm.