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 Olympus ED 14-35mm f2.0 SWD 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 ED 14-35mm f2.0 SWD is the longer of the two lenses at 123mm. The Panasonic Leica 25mm F1.4 with a length of 75mm, is 48mm shorter. Besides being longer, the Olympus ED 14-35mm f2.0 SWD also has a larger diameter of 86mm compared to the Panasonic Leica 25mm F1.4's 78mm 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 25mm F1.4 weighs 510g, which means it is 405g (44%) lighter than the Olympus ED 14-35mm f2.0 SWD which has a weight of 915g.
Filter Threads
The Panasonic Leica 25mm F1.4 has a filter size of 46mm whereas the Olympus ED 14-35mm f2.0 SWD has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 46mm filters that we recommend you to consider for the Panasonic Leica 25mm F1.4:
And these are the 77mm filters that we recommend for the Olympus ED 14-35mm f2.0 SWD:
Lens Mounts
Both the Panasonic Leica 25mm F1.4 and the Olympus ED 14-35mm f2.0 SWD has the same Four Thirds lens mount. Some of the latest released cameras that are compatible with the Four Thirds lenses are Olympus E-5, Olympus E-600 and Olympus E-620.
Panasonic Leica 25mm F1.4 is also available in the Micro Four Thirds mount.
Focal Range
Panasonic Leica 25mm F1.4 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.
On the other hand, the Olympus ED 14-35mm f2.0 SWD has a focal range of 14-35mm and 2.5X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28-70mm when used on a FourThirds format camera.