Product comparison · 2 lenses

Canon RF 28 mm f2.8 STM vs Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE

24specifications compared
15differ
9identical
30known for one product only

Key differences

The Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE has 79° more lens viewing angle, horizontal than the Canon RF 28 mm f2.8 STM (144° vs 65°). The Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE has 98° more lens viewing angle, vertical than the Canon RF 28 mm f2.8 STM (144° vs 46°). The Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE has 69° more lens viewing angle, diagonal than the Canon RF 28 mm f2.8 STM (144° vs 75°). Lens structure (elements/groups): 8/6 on the Canon RF 28 mm f2.8 STM, 11/8 on the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE. Lens type: Wide zoom lens on the Canon RF 28 mm f2.8 STM, Wide fish-eye lens on the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE.

Lens structure (elements/groups)
- RF 28 mm f2.8 STM:8/6
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:11/8
Lens type
- RF 28 mm f2.8 STM:Wide zoom lens
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:Wide fish-eye lens
Lens viewing angle, horizontal
- RF 28 mm f2.8 STM:65°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Lens viewing angle, vertical
- RF 28 mm f2.8 STM:46°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Lens viewing angle, diagonal
- RF 28 mm f2.8 STM:75°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Closest focusing distance
- RF 28 mm f2.8 STM:0.23 m
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:0.2 m
Image sensor format
- RF 28 mm f2.8 STM:Full frame
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:APS-C
Maximum aperture number
- RF 28 mm f2.8 STM:2.8
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:3.5

Side by side

Differences highlightedShow differences only

Comparison of RF 28 mm f2.8 STM, RF-S 3.9mm F3.5 STM DUAL FISHEYE
54 specifications	A Canon RF 28 mm f2.8 STM View product	B Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE View product
Lens system9 differ
Component for	MILC	MILC
Lens structure (elements/groups)Differs	8/6	11/8
Lens typeDiffers	Wide zoom lens	Wide fish-eye lens
Lens viewing angle, horizontalDiffers	65°	144°
Focus adjustmentKnown for one	Auto/Manual	Unknown — not stated by the source
Lens viewing angle, verticalDiffers	46°	144°
Lens viewing angle, diagonalDiffers	75°	144°
Focal length rangeKnown for one	28 - 28 mm	Unknown — not stated by the source
Closest focusing distanceDiffers	0.23 m	0.2 m
Control ring	Yes	Yes
Image sensor formatDiffers	Full frame	APS-C
Lens mount interface	Canon RF	Canon RF
Maximum aperture numberDiffers	2.8	3.5
Minimum aperture numberDiffers	22	16
Number of diaphragm blades	7	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	No	Unknown — not stated by the source
Performance2 differ
AF actuatorDiffers	ST	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	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
Lens hoodKnown for one	No	Unknown — not stated by the source
Lens hood modelKnown for one	EW-55	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
Number of Ultra-low Dispersion (UD) elementsKnown for one	Unknown — not stated by the source	2
Designidentical
Product colour	Black	Black
Mounting typeKnown for one	Bayonet	Unknown — not stated by the source
Dustproof	No	No
WeatherproofKnown for one	No	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	5 pc(s)	Unknown — not stated by the source
Master (outer) cases per pallet layerKnown for one	8 pc(s)	Unknown — not stated by the source
Weight & dimensions4 differ
DiameterDiffers	6.92 cm	11.2 cm
Filter sizeDiffers	55 mm	30.5 mm
LengthDiffers	24.7 mm	54.6 mm
WeightDiffers	120 g	290 g
Extended lengthKnown for one	Unknown — not stated by the source	8.37 cm
Packaging dataidentical
Package depthKnown for one	150 mm	Unknown — not stated by the source
Package heightKnown for one	100 mm	Unknown — not stated by the source
Package weightKnown for one	200 g	Unknown — not stated by the source
Package widthKnown for one	150 mm	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Packaging contentidentical
Lens cap included	Yes	Yes
Lens cap modelKnown for one	E-55	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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