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Product comparison · 2 lenses

Canon RF 20mm F1.4 L VCM vs Canon RF-S 7.8 mm F4 STM Dual

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  • 24specifications compared
  • 17differ
  • 7identical
  • 23known for one product only

Key differences

The Canon RF 20mm F1.4 L VCM has 21° more lens viewing angle, horizontal than the Canon RF-S 7.8 mm F4 STM Dual (84° vs 63°). The Canon RF-S 7.8 mm F4 STM Dual has 1° more lens viewing angle, vertical than the Canon RF 20mm F1.4 L VCM (63° vs 62°). The Canon RF 20mm F1.4 L VCM has 31° more lens viewing angle, diagonal than the Canon RF-S 7.8 mm F4 STM Dual (94° vs 63°). Only the Canon RF 20mm F1.4 L VCM has dustproof. Only the Canon RF 20mm F1.4 L VCM has moisture-resistant.

  • Lens structure (elements/groups)
    • 15/11
    • 9/7
  • Lens type
    • Full-frame lens
    • Stereoscopic lens
  • Lens viewing angle, horizontal
    • 84°
    • 63°
  • Lens viewing angle, vertical
    • 62°
    • 63°
  • Lens viewing angle, diagonal
    • 94°
    • 63°
  • Closest focusing distance
    • 0.2 m
    • 0.15 m
  • Number of diaphragm blades
    • 11
    • 7
  • AF actuator
    • VCM
    • STM

Side by side

Differences highlightedShow differences only
47 specifications
A

Canon

RF 20mm F1.4 L VCMView product
B

Canon

RF-S 7.8 mm F4 STM DualView product
Lens system7 differ
Component forMILCMILC
Lens structure (elements/groups)Differs15/119/7
Lens typeDiffersFull-frame lensStereoscopic lens
Lens viewing angle, horizontalDiffers84°63°
Focus adjustmentKnown for oneAuto/Manual
Lens viewing angle, verticalDiffers62°63°
Fixed focal lengthKnown for one7.8 mm
Lens viewing angle, diagonalDiffers94°63°
Closest focusing distanceDiffers0.2 m0.15 m
Control ringYesYes
Image sensor formatKnown for oneAPS-C
Lens mount interfaceCanon RFCanon RF
Maximum aperture numberKnown for one4
Minimum aperture number1616
Number of diaphragm bladesDiffers117
Zoom capabilityKnown for oneNo
Image stabilizerKnown for oneYes
Image stabilizer typeKnown for oneIn-Body Image Stabilization (IBIS), Optical Image Stabilization (OIS)
Performance3 differ
AF actuatorDiffersVCMSTM
Auto focusKnown for oneYes
Camera brands compatibilityCanonCanon
Lens coating featuresDiffersAir Sphere Coating (ASC), Fluorine coating, Subwavelength Structure Coating (SWC), Super Spectra Coating (SSC)Super Spectra Coating (SSC)
Manual focusKnown for oneYes
Maximum magnificationDiffers0.19x0.07x
Number of Ultra-low Dispersion (UD) elementsKnown for one2
Lens hoodKnown for oneYes
Lens hood modelKnown for oneEW-73H
Design2 differ
Product colourBlackBlack
Mounting typeKnown for oneBayonet
DustproofDiffersYesNo
Moisture-resistantDiffersYesNo
Market segmentKnown for oneProfessional
Logistics dataidentical
Layers per palletKnown for one5 pc(s)
Weight & dimensions4 differ
DiameterDiffers7.65 cm6.92 cm
Filter sizeDiffers67 mm58 mm
LengthDiffers99.3 mm41.5 mm
WeightDiffers519 g130 g
Packaging dataidentical
Package depthKnown for one110 mm
Package heightKnown for one132 mm
Package weightKnown for one272 g
Package widthKnown for one110 mm
Packaging content1 differ
Lens cap includedYesYes
Lens cap modelDiffersE-67IIE-58II
Rear lens cap includedKnown for oneYes
Rear lens cap modelKnown for oneRF
Bag includedKnown for oneYes
Bag modelKnown for oneLP1219

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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