The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus 30mm F3.5 Macro and the Samyang 35mm F1.2 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Samyang 35mm F1.2 is the longer of the two lenses at 74mm. The Olympus 30mm F3.5 Macro with a length of 60mm, is 14mm shorter. Besides being longer, the Samyang 35mm F1.2 also has a larger diameter of 68mm compared to the Olympus 30mm F3.5 Macro's 57mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Olympus 30mm F3.5 Macro weighs 128g, which means it is 292g (69%) lighter than the Samyang 35mm F1.2 which has a weight of 420g.
Lens Mounts
Both the Olympus 30mm F3.5 Macro and the Samyang 35mm F1.2 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-5, Panasonic GH6 and OM System OM-1.
Samyang 35mm F1.2 is also available in Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
Olympus 30mm F3.5 Macro is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 60mm when used on a FourThirds format camera. Samyang 35mm F1.2 is a prime lens with fixed focal lenght of 35mm which has an effective (full-frame 35mm equivalent) focal range of 52.5mm when used on a APS-C / DX format camera.