The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica SL 24-70mm F2.8 and the Carl Zeiss Biogon T2,8/21 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. Leica SL 24-70mm F2.8 is the longer of the two lenses at 123mm. The Carl Zeiss Biogon T2,8/21 ZM with a length of 75mm, is 48mm shorter. Besides being longer, the Leica SL 24-70mm F2.8 also has a larger diameter of 88mm compared to the Carl Zeiss Biogon T2,8/21 ZM's 53mm 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 Biogon T2,8/21 ZM weighs 280g, 67% (576g) lighter than the Leica SL 24-70mm F2.8's weight of 856g.
Filter Threads
The Leica SL 24-70mm F2.8 has a filter size of 82mm whereas the Carl Zeiss Biogon T2,8/21 ZM has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Leica SL 24-70mm F2.8:
And these are the 46mm filters that we recommend for the Carl Zeiss Biogon T2,8/21 ZM:
Lens Mounts
The Leica SL 24-70mm F2.8 has the Leica L lens mount whereas the Carl Zeiss Biogon T2,8/21 ZM has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Leica SL 24-70mm F2.8 has a focal range of 24-70mm and
2.9X zoom ratio .
On the other hand, the Carl Zeiss Biogon T2,8/21 ZM is a prime lens with fixed focal lenght of 21mm.
