AVIGILON™ in cooperation with world leader in photo lens manufacturing CANON® offers to equip HD Pro series IP security cameras with high quality CANON® lenses. LEF2818CA 28mm fixed lens provide 65° horizontal angle and support Auto-Iris functionality. f/1.8, Auto-Iris | Recommended for 4K-7K H4PRO-B | Highest image quality, good in low light, excellent value.