The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon EF-M 18-150mm F3.5-6.3 and the Samyang 300mm f6.3 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. Canon EF-M 18-150mm F3.5-6.3 is the longer of the two lenses at 87mm. The Samyang 300mm f6.3 with a length of 74mm, is 13mm shorter. On the other hand, the Samyang 300mm f6.3 has a larger diameter of 65mm compared to the Canon EF-M 18-150mm F3.5-6.3's 61mm 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. Canon EF-M 18-150mm F3.5-6.3 weighs 300g, which means it is 18g (5%) lighter than the Samyang 300mm f6.3 which has a weight of 318g.
Lens Mounts
Both the Canon EF-M 18-150mm F3.5-6.3 and the Samyang 300mm f6.3 has the same Canon EF-M lens mount. Some of the latest released cameras that are compatible with the Canon EF-M lenses are Canon M50 II, Canon M200 and Canon M6 MII.
Samyang 300mm f6.3 is also available in Fujifilm X , Micro Four Thirds and Sony E mounts.
Focal Range
Canon EF-M 18-150mm F3.5-6.3 has a focal range of 18-150mm and
8.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
28.8-240mm when used on a APS-C / DX format camera.
On the other hand, the Samyang 300mm f6.3 is a prime lens with fixed focal lenght of 300mm which has an effective (full-frame 35mm equivalent) focal range of 450mm when used on a APS-C / DX format camera.
