Product comparison · 2 lenses

Canon RF 20 mm F1.4L VCM vs Canon RF 50mm f/1.8 STM

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  • 16specifications compared
  • 13differ
  • 3identical
  • 25known for one product only

Key differences

The Canon RF 50mm f/1.8 STM has 30 mm more fixed focal length than the Canon RF 20 mm F1.4L VCM (50 mm vs 20 mm). The Canon RF 50mm f/1.8 STM has 0.1 m more closest focusing distance than the Canon RF 20 mm F1.4L VCM (0.3 m vs 0.2 m). The Canon RF 50mm f/1.8 STM has 0.4 more maximum aperture number than the Canon RF 20 mm F1.4L VCM (1.8 vs 1.4). Component for: MILC on the Canon RF 20 mm F1.4L VCM, SLR on the Canon RF 50mm f/1.8 STM. Lens structure (elements/groups): 15/11 on the Canon RF 20 mm F1.4L VCM, 6/5 on the Canon RF 50mm f/1.8 STM.

  • Component for
    • RF 20 mm F1.4L VCM:MILC
    • RF 50mm f/1.8 STM:SLR
  • Lens structure (elements/groups)
    • RF 20 mm F1.4L VCM:15/11
    • RF 50mm f/1.8 STM:6/5
  • Fixed focal length
    • RF 20 mm F1.4L VCM:20 mm
    • RF 50mm f/1.8 STM:50 mm
  • Closest focusing distance
    • RF 20 mm F1.4L VCM:0.2 m
    • RF 50mm f/1.8 STM:0.3 m
  • Maximum aperture number
    • RF 20 mm F1.4L VCM:1.4
    • RF 50mm f/1.8 STM:1.8
  • Minimum aperture number
    • RF 20 mm F1.4L VCM:16
    • RF 50mm f/1.8 STM:22
  • Number of aspheric elements
    • RF 20 mm F1.4L VCM:2
    • RF 50mm f/1.8 STM:1
  • Number of diaphragm blades
    • RF 20 mm F1.4L VCM:11
    • RF 50mm f/1.8 STM:7

Side by side

Differences highlightedShow differences only (on)
Comparison of RF 20 mm F1.4L VCM, RF 50mm f/1.8 STM
41 specifications
Lens system8 differ
Component forDiffersMILCSLR
Lens structure (elements/groups)Differs15/116/5
Lens typeKnown for oneWide-angleUnknown — not stated by the source
Fixed focal lengthDiffers20 mm50 mm
Lens viewing angle, diagonalKnown for one94°Unknown — not stated by the source
Closest focusing distanceDiffers0.2 m0.3 m
Control ringKnown for oneYesUnknown — not stated by the source
Maximum aperture numberDiffers1.41.8
Minimum aperture numberDiffers1622
Number of aspheric elementsDiffers21
Number of diaphragm bladesDiffers117
Zoom capabilityKnown for oneNoUnknown — not stated by the source
Image stabilizerKnown for oneUnknown — not stated by the sourceYes
Image stabilizer number of stopsKnown for oneUnknown — not stated by the source7
Performance1 differ
Auto focusKnown for oneYesUnknown — not stated by the source
Lens coating featuresKnown for oneAir Sphere Coating (ASC), Fluorine coating, Sub-wavelength Structure Coating (SWC)Unknown — not stated by the source
Manual focusKnown for oneYesUnknown — not stated by the source
Maximum magnificationDiffers0.19x0.25x
Number of Ultra-low Dispersion (UD) elementsKnown for one2Unknown — not stated by the source
Ultrasonic motor (USM)Known for oneYesUnknown — not stated by the source
Lens hoodKnown for oneYesUnknown — not stated by the source
Lens hood shapeKnown for onePetal lens hoodUnknown — not stated by the source
Lens hood typeKnown for oneRemovable lens hoodUnknown — not stated by the source
Lens hood modelKnown for oneEW-73HUnknown — not stated by the source
Designidentical
Market segmentKnown for oneProfessionalUnknown — not stated by the source
Mounting typeKnown for oneBayonetUnknown — not stated by the source
DustproofKnown for oneYesUnknown — not stated by the source
WeatherproofKnown for oneYesUnknown — not stated by the source
Weight & dimensions4 differ
DiameterDiffers7.65 cm6.92 cm
Filter sizeDiffers67 mm43 mm
LengthDiffers99.3 mm40.5 mm
WeightDiffers519 g160 g
Packaging contentidentical
Bag includedKnown for oneYesUnknown — not stated by the source
Bag modelKnown for oneLP1219Unknown — not stated by the source
Lens cap includedKnown for oneYesUnknown — not stated by the source
Lens cap modelKnown for oneE-67IIUnknown — not stated by the source
Rear lens cap includedKnown for oneYesUnknown — not stated by the source
Technical detailsidentical
Viewing angleKnown for oneUnknown — not stated by the source46°

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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