The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic Macro 30mm F2.8 OIS and the Samyang 35mm F1.2 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. Samyang 35mm F1.2 is the longer of the two lenses at 74mm. The Panasonic Macro 30mm F2.8 OIS with a length of 64mm, is 10mm shorter. Besides being longer, the Samyang 35mm F1.2 also has a larger diameter of 68mm compared to the Panasonic Macro 30mm F2.8 OIS's 59mm diameter.
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Below you can find a scaled side-by-side image of Panasonic Macro 30mm F2.8 OIS and Samyang 35mm F1.2 to get a better idea of how their sizes compare in real life.
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 Macro 30mm F2.8 OIS weighs 180g, which means it is 240g (57%) lighter than the Samyang 35mm F1.2 which has a weight of 420g.
Filter Threads
The Panasonic Macro 30mm F2.8 OIS has a filter size of 46mm whereas the Samyang 35mm F1.2 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 46mm filters that we recommend you to consider for the Panasonic Macro 30mm F2.8 OIS:
And these are the 62mm filters that we recommend for the Samyang 35mm F1.2:
Lens Mounts
Both the Panasonic Macro 30mm F2.8 OIS 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-1 II, Panasonic G9 II and OM System OM-5.
Samyang 35mm F1.2 is also available in Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
Panasonic Macro 30mm F2.8 OIS 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.
On the other hand, the 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.