Canon RF 10-20 mm f4L IS STM vs Canon RF20mm F1.4 L VCM

Key differences

The Canon RF 10-20 mm f4L IS STM has 0.05 m more closest focusing distance than the Canon RF20mm F1.4 L VCM (0.25 m vs 0.2 m). The Canon RF 10-20 mm f4L IS STM has 2.6 more maximum aperture number than the Canon RF20mm F1.4 L VCM (4 vs 1.4). The Canon RF 10-20 mm f4L IS STM has 6 more minimum aperture number than the Canon RF20mm F1.4 L VCM (22 vs 16). Only the Canon RF 10-20 mm f4L IS STM has zoom capability. Lens structure (elements/groups): 16/12 on the Canon RF 10-20 mm f4L IS STM, 15/11 on the Canon RF20mm F1.4 L VCM.

• Lens structure (elements/groups)
  • RF 10-20 mm f4L IS STM:16/12
  • RF20mm F1.4 L VCM:15/11
• Lens type
  • RF 10-20 mm f4L IS STM:Wide zoom lens
  • RF20mm F1.4 L VCM:Wide-angle
• Lens viewing angle, diagonal
  • RF 10-20 mm f4L IS STM:130° 25' - 94°
  • RF20mm F1.4 L VCM:94°
• Closest focusing distance
  • RF 10-20 mm f4L IS STM:0.25 m
  • RF20mm F1.4 L VCM:0.2 m
• Maximum aperture number
  • RF 10-20 mm f4L IS STM:4
  • RF20mm F1.4 L VCM:1.4
• Minimum aperture number
  • RF 10-20 mm f4L IS STM:22
  • RF20mm F1.4 L VCM:16
• Number of aspheric elements
  • RF 10-20 mm f4L IS STM:3
  • RF20mm F1.4 L VCM:2
• Number of diaphragm blades
  • RF 10-20 mm f4L IS STM:9
  • RF20mm F1.4 L VCM:11