From the manufacturer: "Samyang Optics, the Korean manufacturer of industrial optics and photographic lenses creates high quality optics, modernity and precision is
their maxim. Korean made Samyang lenses are also
renamed and sold as as
Bower, Bell and Howell, Falcon, Opteka,
Phoenix, Polar, Pro-Optic,
Vivitar, and Walimex. Their products are designed for all photographers profiles,
wither they are professionals or amateurs. They provide the tools the rest is
up to your imagination. Be creative! Discover Samyang lenses like thousands delighted photographers all around the world! Samyang
has had products are on the market for over 40 years that are
distributed in more than 100 countries."
Up until recently the Korean firm Samyang has been known for its cheap manual long- focus lenses
containing both lenses and mirrors. These lenses come with a T-mount thread which can be connected to any reflex camera by using the appropriate link. Samyang’s telephoto lenses have been offered at temptingly low prices thanks to the optical simplicity of their instruments, which
reminds me more of refractors and Maksutov telescopes designed for astronomy enthusiasts than of photographic lenses.