ACHIEVE UNIQUE PERSPECTIVES - The 4mm focal length and 210° angle of view create striking circular fisheye images, perfect for creative and experimental photography on your Nikon Z. SUPERIOR IMAGE QUALITY - Capture sharp, detailed images with the lens's 7 elements in 6 groups optical design, ensuring exceptional clarity and minimal distortion in your shots. PERFECT FOR MANUAL FOCUS - Designed for precision, the manual focus allows you to fine-tune your focus for creative control, with a minimum focus distance of just 3.15' (8cm). COMPACT AND LIGHTWEIGHT DESIGN - Weighing only 4.76 oz (135g) and measuring 1.78 x 1', this lens is incredibly portable, making it ideal for on-the-go shooting without added bulk.