The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 300mm f6.3 and the Olympus 300mm f2.8 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. Olympus 300mm f2.8 is the longer of the two lenses at 281mm. The Samyang 300mm f6.3 with a length of 74mm, is 207mm shorter. Besides being longer, the Olympus 300mm f2.8 also has a larger diameter of 129mm compared to the Samyang 300mm f6.3's 65mm 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. Samyang 300mm f6.3 weighs 260g, which means it is 3030g (92%) lighter than the Olympus 300mm f2.8 which has a weight of 3290g.
Below you can find the dimension and weight table of the Telephoto Mirror Prime Lenses in Four Thirds Mount for size comparison purposes.
Super Telephoto Lenses in Four Thirds Mount for Size Comparison
Filter Threads
The Samyang 300mm f6.3 has a filter size of 26mm whereas the Olympus 300mm f2.8 has a 43mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 26mm filters that we recommend you to consider for the Samyang 300mm f6.3:
And these are the 43mm filters that we recommend for the Olympus 300mm f2.8:
Lens Mounts
Both the Samyang 300mm f6.3 and the Olympus 300mm f2.8 has the same Four Thirds lens mount. Some of the latest released cameras that are compatible with the Four Thirds lenses are , and .
Samyang 300mm f6.3 is also available in Canon EF , Nikon F (DX) and Sony Alpha mounts.
Focal Range
Both lenses have the same focal range of
300mm but while Samyang 300mm f6.3 has the fastest aperture of
F6.3, the Olympus 300mm f2.8's widest aperture value is
F2.8.