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 Sigma 300mm F2.8 APO EX DG HSM 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. Sigma 300mm F2.8 APO EX DG HSM is the longer of the two lenses at 215mm. The Samyang 300mm f6.3 with a length of 74mm, is 141mm shorter. Besides being longer, the Sigma 300mm F2.8 APO EX DG HSM also has a larger diameter of 119mm 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 2140g (89%) lighter than the Sigma 300mm F2.8 APO EX DG HSM which has a weight of 2400g.
Filter Threads
The Samyang 300mm f6.3 has a filter size of 26mm whereas the Sigma 300mm F2.8 APO EX DG HSM has a 46mm 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 46mm filters that we recommend for the Sigma 300mm F2.8 APO EX DG HSM:
Lens Mounts
The Samyang 300mm f6.3 has the Nikon F (DX) lens mount whereas the Sigma 300mm F2.8 APO EX DG HSM has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Samyang 300mm f6.3 is also available in Canon EF , Four Thirds and Sony Alpha mounts.
Sigma 300mm F2.8 APO EX DG HSM is also available in Canon EF , Pentax KAF, Sony Alpha and Sigma SA 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 Sigma 300mm F2.8 APO EX DG HSM's widest aperture value is
F2.8.