The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus 12-100mm F4.0 IS Pro and the Panasonic Leica 35-100mm f2.8 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. Olympus 12-100mm F4.0 IS Pro is the longer of the two lenses at 117mm. The Panasonic Leica 35-100mm f2.8 with a length of 100mm, is 17mm shorter. Besides being longer, the Olympus 12-100mm F4.0 IS Pro also has a larger diameter of 78mm compared to the Panasonic Leica 35-100mm f2.8's 67mm diameter.
Below you can find a scaled side-by-side image of Olympus 12-100mm F4.0 IS Pro and Panasonic Leica 35-100mm f2.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Olympus 12-100mm F4.0 IS Pro and the Panasonic Leica 35-100mm f2.8 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 35-100mm f2.8 weighs 360g, 35% (201g) lighter than the Olympus 12-100mm F4.0 IS Pro's weight of 561g.
Filter Threads
The Olympus 12-100mm F4.0 IS Pro has a filter size of 72mm whereas the Panasonic Leica 35-100mm f2.8 has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Olympus 12-100mm F4.0 IS Pro:
And these are the 58mm filters that we recommend for the Panasonic Leica 35-100mm f2.8:
Lens Mounts
Both the Olympus 12-100mm F4.0 IS Pro and the Panasonic Leica 35-100mm f2.8 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-3 Astro , OM System OM-5 II and OM System OM-3 .
Focal Range
Olympus 12-100mm F4.0 IS Pro has a focal range of 12-100mm and
8.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
24-200mm when used on a FourThirds format camera.
On the other hand, the Panasonic Leica 35-100mm f2.8 has a focal range of 35-100mm and 2.9X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 70-200mm when used on a FourThirds format camera.
