The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus 17mm F1.2 Pro and the Panasonic Leica 15mm F1.7 for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Olympus 17mm F1.2 Pro is the longer of the two lenses at 87mm. The Panasonic Leica 15mm F1.7 with a length of 36mm is 51mm shorter. Besides being longer, the Olympus 17mm F1.2 Pro also has a larger diameter of 68mm compared to Panasonic Leica 15mm F1.7's 58mm diameter.
Below you can find the scaled side by side image of Olympus 17mm F1.2 Pro and Panasonic Leica 15mm F1.7 to get a better idea of how their size compare in real life.
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. Panasonic Leica 15mm F1.7 weighs 115g, 70% (275g) lighter than the Olympus 17mm F1.2 Pro's weight of 390g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Wideangle Prime Lenses in Micro Four Thirds Mount for Size Comparison
Both Olympus 17mm F1.2 Pro and 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-5, Panasonic GH6 and OM System OM-1.
Olympus 17mm F1.2 Pro is a prime lens with fixed focal lenght of 17mm which has an effective (full-frame 35mm equivalent) focal range of 34mm when used on a FourThirds format camera. 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.