The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 50mm F1.2 AS UMC CS and the Panasonic 45-150mm F4-5.6 OIS 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 50mm F1.2 AS UMC CS is the longer of the two lenses at 74mm. The Panasonic 45-150mm F4-5.6 OIS with a length of 73mm, is 1mm shorter. Besides being longer, the Samyang 50mm F1.2 AS UMC CS also has a larger diameter of 68mm compared to the Panasonic 45-150mm F4-5.6 OIS's 62mm 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. Panasonic 45-150mm F4-5.6 OIS weighs 200g, 46% (175g) lighter than the Samyang 50mm F1.2 AS UMC CS 's weight of 375g.
Filter Threads
The Samyang 50mm F1.2 AS UMC CS has a filter size of 62mm whereas the Panasonic 45-150mm F4-5.6 OIS has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Samyang 50mm F1.2 AS UMC CS :
And these are the 52mm filters that we recommend for the Panasonic 45-150mm F4-5.6 OIS:
Lens Mounts
Both the Samyang 50mm F1.2 AS UMC CS and the Panasonic 45-150mm F4-5.6 OIS 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.
Samyang 50mm F1.2 AS UMC CS is also available in the Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
Samyang 50mm F1.2 AS UMC CS is a prime lens with fixed focal lenght of 50mm which has an effective (full-frame 35mm equivalent) focal range of
100mm when used on a APS-C / DX format camera.
On the other hand, the Panasonic 45-150mm F4-5.6 OIS has a focal range of 45-150mm and 3.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 90-300mm when used on a FourThirds format camera.
