Samyang's first AF lens for Nikon is an F mount version of the AF 14mm f2.8 ultra-wide prime. As with the Canon EF model, the F mount 14mm f2.8 provides Nikon D-SLR owners with an affordable alternative to the camera branded model, in this case the AF Nikkor 14mm f2.8 ED.

Photo: Samyang

Externally, the barrel construction employs metal tubes with sealing against the intrusion of dust and moisture, including a rubber gasket around the lens mount. On the inside, the optical construction comprises 15 elements in ten groups which includes no fewer than seven special types – two aspherical elements, four made from high-refractive (HR) glass and one with extra-low dispersion (ED) characteriscs. The aspherical types correct for distortion and also optimise the centre-to-corner uniformity of sharpness while the others primarily deal with chromatic and spherical aberrations.

Samyang’s ‘Ultra Multi Coating’ (UMC) anti-reflection coatings are applied to minimise ghosting and flare. Given the angle-of-view of 116.6 degrees (diagonal on a full-35mm sensor), the petal-type hood is built-in and there’s no provision for fitting screwthread filters. The focusing group is internal and enables a minimum focusing distance of 20 centimetres, giving a maximum reproduction ratio of 1:6.6. The diaphragm comprises seven blades to give smoother out-of-focus effects.

The Samyang AF 14mm f2.8 F will be available in Australia in September. Samyang lenses are distributed locally by Maxxum Pty Ltd and for more information visit http://www.maxxum.com.au or http://www.samyanglensglobal.com