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 Rokinon 35mm f1.4 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 Rokinon 35mm f1.4 with a length of 112mm, is 16mm shorter. Besides being longer, the Panasonic 10-25mm F1.7 also has a larger diameter of 88mm compared to the Rokinon 35mm f1.4's 63mm 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. Rokinon 35mm f1.4 weighs 660g, 4% (30g) lighter than the Panasonic 10-25mm F1.7's weight of 690g.
Filter Threads
Both the Panasonic 10-25mm F1.7 and the Rokinon 35mm f1.4 have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Panasonic 10-25mm F1.7 has the Micro Four Thirds lens mount whereas the Rokinon 35mm f1.4 has the Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount and Olympus E-5, Olympus E-600 and Olympus E-620 for the Four Thirds Mount.
Rokinon 35mm f1.4 is also available in Canon EF , Nikon F (FX), Pentax KAF, Sony Alpha and Samsung NX mounts.
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 Rokinon 35mm f1.4 is a prime lens with fixed focal lenght of 35mm.
