Samyang AF 45mm f1.8 Lens. With less distortion than 35mm lenses and a wider angle than 50mm, the AF 45mm F1.8 FE opens up a range of photographic styles and themes. This lens will deliver the high contrast and dimensionality typical of specialized lenses while retaining spectacular resolution thanks to an outstanding optical design. Photographers can take advantage of the bright F1.8 aperture, delivering blurry backgrounds, and the 9 aperture blades that produce striking sunstar effects, adding creativity to every picture. In addition, the lens is compact (5.61cm) and light (162g) so it is highly portable.