Product comparison · 2 lenses

Canon RF 10-20 mm f4L IS STM vs Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE

24specifications compared
16differ
8identical
38known for one product only

Key differences

The Canon RF 10-20 mm f4L IS STM has 0.05 m more closest focusing distance than the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE (0.25 m vs 0.2 m). The Canon RF 10-20 mm f4L IS STM has 0.5 more maximum aperture number than the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE (4 vs 3.5). The Canon RF 10-20 mm f4L IS STM has 6 more minimum aperture number than the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE (22 vs 16). Only the Canon RF 10-20 mm f4L IS STM has dustproof. Lens structure (elements/groups): 16/12 on the Canon RF 10-20 mm f4L IS STM, 11/8 on the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE.

Lens structure (elements/groups)
- RF 10-20 mm f4L IS STM:16/12
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:11/8
Lens type
- RF 10-20 mm f4L IS STM:Wide zoom lens
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:Wide fish-eye lens
Lens viewing angle, horizontal
- RF 10-20 mm f4L IS STM:121° 55' - 84°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Lens viewing angle, vertical
- RF 10-20 mm f4L IS STM:100° 25' - 62°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Lens viewing angle, diagonal
- RF 10-20 mm f4L IS STM:130° 25' - 94°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Closest focusing distance
- RF 10-20 mm f4L IS STM:0.25 m
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:0.2 m
Image sensor format
- RF 10-20 mm f4L IS STM:Full frame
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:APS-C
Maximum aperture number
- RF 10-20 mm f4L IS STM:4
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:3.5

Side by side

Differences highlightedShow differences only

Comparison of RF 10-20 mm f4L IS STM, RF-S 3.9mm F3.5 STM DUAL FISHEYE
62 specifications	A Canon RF 10-20 mm f4L IS STM View product	B Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE View product
Lens system10 differ
Component for	MILC	MILC
Lens structure (elements/groups)Differs	16/12	11/8
Lens typeDiffers	Wide zoom lens	Wide fish-eye lens
Lens viewing angle, horizontalDiffers	121° 55' - 84°	144°
Focus adjustmentKnown for one	Auto/Manual	Unknown — not stated by the source
Lens viewing angle, verticalDiffers	100° 25' - 62°	144°
Lens viewing angle, diagonalDiffers	130° 25' - 94°	144°
Focal length rangeKnown for one	10 - 20 mm	Unknown — not stated by the source
Closest focusing distanceDiffers	0.25 m	0.2 m
Control ring	Yes	Yes
Image sensor formatDiffers	Full frame	APS-C
Lens mount interface	Canon RF	Canon RF
Macro ratioKnown for one	1:8.33	Unknown — not stated by the source
Maximum aperture numberDiffers	4	3.5
Minimum aperture numberDiffers	22	16
Number of aspheric elementsKnown for one	3	Unknown — not stated by the source
Number of diaphragm bladesDiffers	9	7
Teleconverter/Extender compatibleKnown for one	No	Unknown — not stated by the source
Zoom capabilityKnown for one	Yes	Unknown — not stated by the source
Image stabilizerKnown for one	Yes	Unknown — not stated by the source
Image stabilizer typeKnown for one	Optical Image Stabilization (OIS)	Unknown — not stated by the source
Image stabilizer number of stopsKnown for one	5	Unknown — not stated by the source
Image stabilizer number of stops (OIS)Known for one	5	Unknown — not stated by the source
Image stabilizer number of stops (IBIS x OIS)Known for one	6	Unknown — not stated by the source
Performance2 differ
AF actuator	STM	STM
Auto focusKnown for one	Yes	Unknown — not stated by the source
Camera brands compatibility	Canon	Canon
Circular apertureKnown for one	Yes	Unknown — not stated by the source
Lens coating featuresDiffers	Subwavelength Structure Coating (SWC), Super Spectra Coating (SSC)	Air Sphere Coating (ASC)
Lens colourKnown for one	Black	Unknown — not stated by the source
Manual focusKnown for one	Yes	Unknown — not stated by the source
Number of Ultra-low Dispersion (UD) elementsDiffers	1	2
Lens hoodKnown for one	Yes	Unknown — not stated by the source
Lens hood typeKnown for one	Built-in lens hood	Unknown — not stated by the source
CompatibilityKnown for one	Unknown — not stated by the source	EOS R7
Maximum magnificationKnown for one	Unknown — not stated by the source	0.03x
Design1 differ
Product colour	Black	Black
Mounting typeKnown for one	Bayonet	Unknown — not stated by the source
DustproofDiffers	Yes	No
WeatherproofKnown for one	Yes	Unknown — not stated by the source
Moisture-resistantKnown for one	Unknown — not stated by the source	No
Logistics dataidentical
Country of originKnown for one	Japan	Unknown — not stated by the source
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Layers per palletKnown for one	4 pc(s)	Unknown — not stated by the source
Master (outer) cases per pallet layerKnown for one	4 pc(s)	Unknown — not stated by the source
Weight & dimensions3 differ
DiameterDiffers	8.37 cm	11.2 cm
LengthDiffers	112 mm	54.6 mm
WeightDiffers	570 g	290 g
Filter sizeKnown for one	Unknown — not stated by the source	30.5 mm
Extended lengthKnown for one	Unknown — not stated by the source	8.37 cm
Packaging dataidentical
Package depthKnown for one	250 mm	Unknown — not stated by the source
Package heightKnown for one	200 mm	Unknown — not stated by the source
Package weightKnown for one	750 g	Unknown — not stated by the source
Package widthKnown for one	250 mm	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Packaging contentidentical
Bag includedKnown for one	Yes	Unknown — not stated by the source
Bag modelKnown for one	LP1219	Unknown — not stated by the source
Lens cap included	Yes	Yes
Lens cap modelKnown for one	10-20	Unknown — not stated by the source
Rear lens cap included	Yes	Yes
Rear lens cap modelKnown for one	RF	Unknown — not stated by the source
User guideKnown for one	Yes	Unknown — not stated by the source

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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