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 Sigma 28-45mm F1.8 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 Sigma 28-45mm F1.8 with a length of 151mm, is 7mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 88mm.
Below you can find a scaled side-by-side image of Sigma 28-105mm f2.8 and Sigma 28-45mm F1.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 28-105mm f2.8 and the Sigma 28-45mm F1.8 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. Sigma 28-45mm F1.8 weighs 960g, 3% (35g) lighter than the Sigma 28-105mm f2.8's weight of 995g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Leica L Mount for size comparison purposes.
Standard Leica L Mount
Filter Threads
Both the Sigma 28-105mm f2.8 and the Sigma 28-45mm F1.8 have the same Filter thread size of 82mm .
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 28-105mm f2.8 and the Sigma 28-45mm F1.8 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 .
Sony E mount.
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 Sigma 28-45mm F1.8 has a focal range of 28-45mm and 1.6X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 42 - 67.5mm .
