Samyang SY300M-PO-BK 300mm F6.3 Mirror Lens - MFT Mount

The Samyang 300mm F6.3 Mirror Lens for Micro Four Thirds is a catadioptric (mirror) telephoto lens that delivers remarkable reach in an astonishingly compact package. By using mirrors to fold the optical path, Samyang has created a 300mm lens that is a fraction of the size and weight of a conventional telephoto. On MFT cameras with their 2x crop factor, this lens provides an effective 600mm focal length — putting distant wildlife, birds, and sports action well within frame. Its nine-element-in-nine-groups optical construction is engineered to deliver sharp, detailed images, while the minimum focusing distance of just 2.95 feet adds unexpected versatility for closer subjects.

As a fully manual lens with a fixed F6.3 aperture, the Samyang 300mm Mirror Lens is best suited to photographers who enjoy a hands-on shooting experience and are comfortable adjusting exposure through shutter speed and ISO. The fixed aperture means you will want to shoot in well-lit conditions or bump up your ISO in lower light. Focus peaking and magnification features available on most modern MFT bodies make manual focusing significantly easier. While the distinctive ring-shaped bokeh of mirror lenses is not to every taste, the lens's combination of extreme portability, long reach, and affordable price make it a compelling option for photographers who want telephoto capability without the bulk or expense of large zoom lenses.