I am selling this because I no longer use it. With an F1.8 aperture, it blurs backgrounds nicely when taking pictures of people or flowers. It's also a strong lens in low-light conditions. *Compatible with full-frame cameras* Name: FE 50mm F1.8 Model Number: SEL50F18F Lens Mount: Sony E-mount Compatible Image Sensor Size: ● 35mm full-frame Focal Length (mm): 50 Focal Length (35mm equivalent) (mm): *175 Lens Configuration (Groups-Elements): 5-6 Angle of View (APS-C): 32° Angle of View (35mm): 47° Maximum Aperture (F-value): 1.8 Minimum Aperture (F-value): 22 Aperture Blades (number): 7 Circular Aperture: Yes Minimum Focusing Distance (m): 0.45 Maximum Magnification (x): 0.14 Filter Diameter (mm): 49