JJC Z-S16-50 self-retaining auto lens cap is a creative and latest patent product designed by JJC company. Z-S16-50 auto lens cap is designed for SONY PZ 16-50mm F3.5-5.6 OSS E-mount Lens. This dedicated lens cap will be an indispensable accessory for your Sony 16-50mm lens. It adopts a screw-in design and can be mounted on lens front without scratching the lens. The four leaves of the lens cap will automatically hide as the lens extends, so you don’t need to remove it from the lens when you want to take photos. It helps to ensure that you don't misplace or lose your cap. The four leaves will automatically close as the lens retracts. At this time the lens cap protects your valuable investment from dust, moisture and scratches. With its easy installation feature and slim type design, the lens cap is approachable for both new camera users and professional photographers.