The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic 10-25mm F1.7 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. Panasonic 10-25mm F1.7 is the longer of the two lenses at 128mm. The Olympus 25mm F1.2 Pro with a length of 87mm, is 41mm shorter. Besides being longer, the Panasonic 10-25mm F1.7 also has a larger diameter of 88mm compared to the Olympus 25mm F1.2 Pro's 70mm 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. Olympus 25mm F1.2 Pro weighs 410g, 40% (280g) lighter than the Panasonic 10-25mm F1.7's weight of 690g.
Filter Threads
The Panasonic 10-25mm F1.7 has a filter size of 77mm 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 77mm filters that we recommend you to consider for the Panasonic 10-25mm F1.7:
And these are the 62mm filters that we recommend for the Olympus 25mm F1.2 Pro:
Lens Mounts
Both the Panasonic 10-25mm F1.7 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 10-25mm F1.7 has a focal range of 10-25mm and
2.5X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
20-50mm 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.
