The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic Leica 25mm F1.4 and the Olympus M 25mm F1.8 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Panasonic Leica 25mm F1.4 is the longer of the two lenses at 55mm. The Olympus M 25mm F1.8 with a length of 41mm, is 14mm shorter. Besides being longer, the Panasonic Leica 25mm F1.4 also has a larger diameter of 63mm compared to the Olympus M 25mm F1.8's 56mm diameter.
The 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. Olympus M 25mm F1.8 weighs 136g, 31% (64g) lighter than the Panasonic Leica 25mm F1.4's weight of 200g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Standard Prime Lenses in Micro Four Thirds Mount for Size Comparison
Both the Panasonic Leica 25mm F1.4 and the Olympus M 25mm F1.8 has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-5, Panasonic GH6 and OM System OM-1.
Panasonic Leica 25mm F1.4 is also available in Four Thirds mount.
Both lenses have the same focal range of 25mm but while Panasonic Leica 25mm F1.4 has the fastest aperture of F1.4, the Olympus M 25mm F1.8's widest aperture value is F1.8.