The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica 50mm f1.4 2025 and the Panasonic 25mm F1.4 II 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. Panasonic 25mm F1.4 II ASPH is the longer of the two lenses at 55mm. The Leica 50mm f1.4 2025 with a length of 45mm, is 10mm shorter. Besides being longer, the Panasonic 25mm F1.4 II ASPH also has a larger diameter of 63mm compared to the Leica 50mm f1.4 2025's 58mm diameter.
Below you can find a scaled side-by-side image of Leica 50mm f1.4 2025 and Panasonic 25mm F1.4 II ASPH to get a better idea of how their sizes compare in real life.
Comparison image of the Leica 50mm f1.4 2025 and the Panasonic 25mm F1.4 II 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. Panasonic 25mm F1.4 II ASPH weighs 205g, 50% (212g) lighter than the Leica 50mm f1.4 2025's weight of 417g.
Filter Threads
Both the Leica 50mm f1.4 2025 and the Panasonic 25mm F1.4 II ASPH have the same Filter thread size of 46mm .
Below are links to the 46mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Leica 50mm f1.4 2025 has the Leica M lens mount whereas the Panasonic 25mm F1.4 II ASPH has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Leica M EV1 , Leica M11-D and Pixii Max for the Leica M Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Leica 50mm f1.4 2025 is a prime lens with fixed focal lenght of 50mm.
On the other hand, the Panasonic 25mm F1.4 II ASPH is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera.