The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic 42.5mm F1.7 OIS and the Panasonic Leica 15mm F1.7 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 42.5mm F1.7 OIS is the longer of the two lenses at 50mm. The Panasonic Leica 15mm F1.7 with a length of 36mm, is 14mm shorter. On the other hand, the Panasonic Leica 15mm F1.7 has a larger diameter of 58mm compared to the Panasonic 42.5mm F1.7 OIS's 55mm diameter.
Below you can find a scaled side-by-side image of Panasonic 42.5mm F1.7 OIS and Panasonic Leica 15mm F1.7 to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic 42.5mm F1.7 OIS and the Panasonic Leica 15mm F1.7 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 Leica 15mm F1.7 weighs 115g, 11% (15g) lighter than the Panasonic 42.5mm F1.7 OIS's weight of 130g.
Filter Threads
The Panasonic 42.5mm F1.7 OIS has a filter size of 37mm whereas the Panasonic Leica 15mm F1.7 has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 37mm filters that we recommend you to consider for the Panasonic 42.5mm F1.7 OIS:
And these are the 46mm filters that we recommend for the Panasonic Leica 15mm F1.7:
Lens Mounts
Both the Panasonic 42.5mm F1.7 OIS and the Panasonic Leica 15mm F1.7 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-3 Astro , OM System OM-5 II and OM System OM-3 .
Focal Range
Panasonic 42.5mm F1.7 OIS is a prime lens with fixed focal lenght of 43mm which has an effective (full-frame 35mm equivalent) focal range of
86mm when used on a FourThirds format camera.
On the other hand, the Panasonic Leica 15mm F1.7 is a prime lens with fixed focal lenght of 15mm which has an effective (full-frame 35mm equivalent) focal range of 30mm when used on a FourThirds format camera.