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. LEF5018CA2 50mm fixed lens provide 40° horizontal angle and support Auto-Iris functionality. f/1.8, Auto-Iris | Recommended for 4K-7K H4PRO-B | Good image quality, good in low light, excellent value.