Bright f/1.8 aperture Optical SteadyShot stabilisation Compact and lightweight The Sony E 50mm f/1.8 OSS is a prime lens compatible with Sony E mount Compact System Cameras such as the NEX 3. Thanks to the bright f/1.8 aperture portrait images can be captured with attractive background blur, and the optical image stabilisation combats motion blur so action photography is also possible. Being an E mount lens means the Sony E 50mm f/1.8 OSS is light, compact and perfect for travelling with, making it versatile enough for an array of photographic styles.