The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Carl Zeiss Distagon T4/18 ZM and the Carl Zeiss Distagon T2,8/15 ZM 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 T2,8/15 ZM is the longer of the two lenses at 92mm. The Carl Zeiss Distagon T4/18 ZM with a length of 71mm, is 21mm shorter. Besides being longer, the Carl Zeiss Distagon T2,8/15 ZM also has a larger diameter of 78mm compared to the Carl Zeiss Distagon T4/18 ZM's 65mm 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 T4/18 ZM weighs 350g, which means it is 200g (36%) lighter than the Carl Zeiss Distagon T2,8/15 ZM which has a weight of 550g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica M Mount for size comparison purposes.
Ultra-Wideangle Lenses in Leica M Mount for Size Comparison
Filter Threads
The Carl Zeiss Distagon T4/18 ZM has a filter size of 58mm whereas the Carl Zeiss Distagon T2,8/15 ZM has a 72mm 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 Distagon T4/18 ZM:
And these are the 72mm filters that we recommend for the Carl Zeiss Distagon T2,8/15 ZM:
Lens Mounts
Both the Carl Zeiss Distagon T4/18 ZM and the Carl Zeiss Distagon T2,8/15 ZM has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M EV1, Leica M11-D and Pixii Max.
Focal Range
Carl Zeiss Distagon T4/18 ZM is a prime lens with fixed focal lenght of 18mm.
On the other hand, the Carl Zeiss Distagon T2,8/15 ZM is a prime lens with fixed focal lenght of 15mm.
