The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic Leica 12-35mm F2.8 and the Olympus 25mm F1.2 Pro 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 25mm F1.2 Pro is the longer of the two lenses at 87mm. The Panasonic Leica 12-35mm F2.8 with a length of 74mm, is 13mm shorter. Besides being longer, the Olympus 25mm F1.2 Pro also has a larger diameter of 70mm compared to the Panasonic Leica 12-35mm F2.8's 68mm 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 Leica 12-35mm F2.8 weighs 306g, which means it is 104g (25%) lighter than the Olympus 25mm F1.2 Pro which has a weight of 410g.
Filter Threads
The Panasonic Leica 12-35mm F2.8 has a filter size of 58mm whereas the Olympus 25mm F1.2 Pro has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Panasonic Leica 12-35mm F2.8:
And these are the 62mm filters that we recommend for the Olympus 25mm F1.2 Pro:
Lens Mounts
Both the Panasonic Leica 12-35mm F2.8 and the Olympus 25mm F1.2 Pro 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 Leica 12-35mm F2.8 has a focal range of 12-35mm and
2.9X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
24-70mm when used on a FourThirds format camera.
On the other hand, the Olympus 25mm F1.2 Pro is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera.
