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 Panasonic 25mm F1.4 II ASPH 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 Panasonic 25mm F1.4 II ASPH with a length of 55mm, is 73mm shorter. Besides being longer, the Panasonic 10-25mm F1.7 also has a larger diameter of 88mm compared to the Panasonic 25mm F1.4 II ASPH's 63mm diameter.
Below you can find a scaled side-by-side image of Panasonic 10-25mm F1.7 and Panasonic 25mm F1.4 II ASPH to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic 10-25mm F1.7 and the Panasonic 25mm F1.4 II ASPH 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 25mm F1.4 II ASPH weighs 205g, 70% (485g) 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 Panasonic 25mm F1.4 II ASPH has a 46mm 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 46mm filters that we recommend for the Panasonic 25mm F1.4 II ASPH:
Lens Mounts
Both the Panasonic 10-25mm F1.7 and the Panasonic 25mm F1.4 II ASPH 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 Panasonic 25mm F1.4 II ASPH 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.
