The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 17mm F1.8 II and the OM System 25mm F1.8 II 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. OM System 25mm F1.8 II is the longer of the two lenses at 41mm. The OM System 17mm F1.8 II with a length of 36mm, is 5mm shorter. On the other hand, the OM System 17mm F1.8 II has a larger diameter of 58mm compared to the OM System 25mm F1.8 II's 56mm diameter.
Below you can find a scaled side-by-side image of OM System 17mm F1.8 II and OM System 25mm F1.8 II to get a better idea of how their sizes compare in real life.
Comparison image of the OM System 17mm F1.8 II and the OM System 25mm F1.8 II 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. OM System 17mm F1.8 II weighs 112g, which means it is 44g (28%) lighter than the OM System 25mm F1.8 II which has a weight of 156g.
Filter Threads
Both the OM System 17mm F1.8 II and the OM System 25mm F1.8 II have the same Filter thread size of 46mm .
Below are links to the 46mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the OM System 17mm F1.8 II and the OM System 25mm F1.8 II 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
OM System 17mm F1.8 II is a prime lens with fixed focal lenght of 17mm which has an effective (full-frame 35mm equivalent) focal range of
34mm when used on a FourThirds format camera.
On the other hand, the OM System 25mm F1.8 II 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.
