The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Noctilux-M 75mm F1.25 ASPH and the Leica Summarit-M 75mm F2.4 ASPH for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Leica Noctilux-M 75mm F1.25 ASPH is the longer of the two lenses at 91mm. The Leica Summarit-M 75mm F2.4 ASPH with a length of 61mm is 30mm shorter. Besides being longer, the Leica Noctilux-M 75mm F1.25 ASPH also has a larger diameter of 74mm compared to Leica Summarit-M 75mm F2.4 ASPH's 55mm diameter.
Below you can find the scaled side by side image of Leica Noctilux-M 75mm F1.25 ASPH and Leica Summarit-M 75mm F2.4 ASPH to get a better idea of how their size compare in real life.
Comparison image of Leica Noctilux-M 75mm F1.25 ASPH and Leica Summarit-M 75mm F2.4 ASPH Size and Weight Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Leica Summarit-M 75mm F2.4 ASPH weighs 325g, 69% (730g) lighter than the Leica Noctilux-M 75mm F1.25 ASPH's weight of 1055g.
Lens Mounts
Both Leica Noctilux-M 75mm F1.25 ASPH and Leica Summarit-M 75mm F2.4 ASPH has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M11, Leica M10 and Leica M Typ 262.
Focal Range