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Samyang 300mm Mirror F6.3 Pentax K APS-C Lens

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The Samyang Reflex f/6.3 300mm ED UMC CS is a new compact reflex mirror lens dedicated for mirrorless compact system cameras, with native fit mounts for Sony E-Mount (for Sony NEX), Fujiifilm X, MFT (for Panasonic and Olympus Micro Four Thirds) and Canon M.


Canon EF, Nikon F, Sony A mounts have been announced, available in Q3 to Q4 2014.


The Samyang 300mm is aesthetically designed, and a compact lens for ease of carrying and use. The optical structure contains 9 elements arranged in 6 groups, including one ED-type lens to provide high contrast and reducing chromatic aberration. UMC Multicoated optics help reduce ghosting and flare.


Its a very compact design with dimensions of 73.7 x 64.5 mm and weighing approximately 320g, makes it ideal for a long telephoto lens for compact system / interchangeable mirrorless cameras.


The Samyang 300mm f/6.3 ED UMC CS Reflex Mirror Lens is a manual lens with smooth manual focusing. Due to the very narrow depth of field with such a long focal length it is recommended to focus with live-view to achieve accurate focus where possible. As with all long telephoto lenses a combination of sturdy camera support / substantial tripod, good technique, fast shutter speed, and use of remote / mirror lock up is recommended to avoid camera shake to achieve the best results.

Accepts filters of diameter 58mm front, or 25.5mm (rear). Supplied with front and rear lens caps, and lens hood.

Available mounts: Canon EF, Canon M, Nikon F, Sony E Mount, Sony A Mount, Fujifilm X, MFT (Micro Four Thirds). Available in Black and Silver colours.

Manufacturer Samyang Optics

Model Samyang 300mm f/6.3 Reflex Lens

Lens type Telephoto lens

Focal length 300 mm

Maximum aperture f/6.3 (fixed)

Min aperture f/6.3

Angle of view 5.5 degrees

Min focusing distance 0.9m

Focus type MF (Manual Focus only)

Lens construction 9 Elements, 6 Groups, 1 ED

Dimensions approx 73.7 x 64.5 mm (Canon M mount)

Weight ~318 g

Filter Size: 58mm (front), 25.5mm (rear)

Available mounts Canon M, Sony E, Fujifilm X, MFT, Canon EF, Nikon F, Sony A


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