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. LEF7020028CA 70-200mm varifocal lens provide 10° - 29° horizontal angle and support Auto-Iris functionality. f/2.8, Auto-Iris, Vari Focal | Recommended for 4K-7K H4PRO-B | Highest image quality available, vari-focal.