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 Panasonic Lumix G 25mm F1.7 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 Leica 25mm F1.4 is the longer of the two lenses at 55mm. The Panasonic Lumix G 25mm F1.7 ASPH with a length of 52mm, is 3mm shorter. Besides being longer, the Panasonic Leica 25mm F1.4 also has a larger diameter of 63mm compared to the Panasonic Lumix G 25mm F1.7 ASPH's 61mm diameter.
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 Lumix G 25mm F1.7 ASPH weighs 125g, 37% (75g) 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 Lenses in Micro Four Thirds Mount for Size Comparison
Filter Threads
Both the Panasonic Leica 25mm F1.4 and the Panasonic Lumix G 25mm F1.7 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
Both the Panasonic Leica 25mm F1.4 and the Panasonic Lumix G 25mm F1.7 ASPH 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-1 II, Panasonic G9 II and OM System OM-5.
Panasonic Leica 25mm F1.4 is also available in Four Thirds mount.
Focal Range
Both lenses have the same focal range of
25mm but while Panasonic Leica 25mm F1.4 has the fastest aperture of
F1.4, the Panasonic Lumix G 25mm F1.7 ASPH's widest aperture value is
F1.7.