Canon RF 10-20 mm f4L IS STM vs Canon RF 100-300mm F2.8 L IS USM

Key differences

The Canon RF 100-300mm F2.8 L IS USM has 1.55 m more closest focusing distance than the Canon RF 10-20 mm f4L IS STM (1.8 m vs 0.25 m). The Canon RF 10-20 mm f4L IS STM has 2 more aspheric elements than the Canon RF 100-300mm F2.8 L IS USM (3 vs 1). The Canon RF 100-300mm F2.8 L IS USM has 0.5 more image stabilizer stops (OIS) than the Canon RF 10-20 mm f4L IS STM (5.5 vs 5). Only the Canon RF 100-300mm F2.8 L IS USM has Teleconverter/Extender compatible. Lens structure (elements/groups): 16/12 on the Canon RF 10-20 mm f4L IS STM, 23/28 on the Canon RF 100-300mm F2.8 L IS USM.

• Lens structure (elements/groups)
  • RF 10-20 mm f4L IS STM:16/12
  • RF 100-300mm F2.8 L IS USM:23/28
• Lens type
  • RF 10-20 mm f4L IS STM:Wide zoom lens
  • RF 100-300mm F2.8 L IS USM:Telephoto zoom lens
• Lens viewing angle, horizontal
  • RF 10-20 mm f4L IS STM:121° 55' - 84°
  • RF 100-300mm F2.8 L IS USM:20° - 6° 50'
• Lens viewing angle, vertical
  • RF 10-20 mm f4L IS STM:100° 25' - 62°
  • RF 100-300mm F2.8 L IS USM:14° - 4° 35'
• Lens viewing angle, diagonal
  • RF 10-20 mm f4L IS STM:130° 25' - 94°
  • RF 100-300mm F2.8 L IS USM:24° - 8° 15'
• Focal length range
  • RF 10-20 mm f4L IS STM:10 - 20 mm
  • RF 100-300mm F2.8 L IS USM:100 - 300 mm
• Closest focusing distance
  • RF 10-20 mm f4L IS STM:0.25 m
  • RF 100-300mm F2.8 L IS USM:1.8 m
• Macro ratio
  • RF 10-20 mm f4L IS STM:1:8.33
  • RF 100-300mm F2.8 L IS USM:1:6.25