The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 28-105mm f2.8 and the Leica 60mm f2.8 ASPH 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. Sigma 28-105mm f2.8 is the longer of the two lenses at 158mm. The Leica 60mm f2.8 ASPH with a length of 89mm, is 69mm shorter. Besides being longer, the Sigma 28-105mm f2.8 also has a larger diameter of 88mm compared to the Leica 60mm f2.8 ASPH's 68mm diameter.
Below you can find a scaled side-by-side image of Sigma 28-105mm f2.8 and Leica 60mm f2.8 ASPH to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 28-105mm f2.8 and the Leica 60mm f2.8 ASPH Size and Weight 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. Leica 60mm f2.8 ASPH weighs 320g, 67% (675g) lighter than the Sigma 28-105mm f2.8's weight of 995g.
Filter Threads
The Sigma 28-105mm f2.8 has a filter size of 82mm whereas the Leica 60mm f2.8 ASPH has a 60mm 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 Sigma 28-105mm f2.8:
And these are the 60mm filters that we recommend for the Leica 60mm f2.8 ASPH:
Lens Mounts
Both the Sigma 28-105mm f2.8 and the Leica 60mm f2.8 ASPH has the same Leica L lens mount . Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Focal Range
Sigma 28-105mm f2.8 has a focal range of 28-105mm and
3.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 157.5mm .
On the other hand, the Leica 60mm f2.8 ASPH is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of 90mm when used on a APS-C / DX format camera.
