Product comparison · 2 lenses

Canon RF 16mm F2.8 STM vs Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE

20specifications compared
13differ
7identical
15known for one product only

Key differences

The Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE has 46° more lens viewing angle, horizontal than the Canon RF 16mm F2.8 STM (144° vs 98°). The Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE has 70° more lens viewing angle, vertical than the Canon RF 16mm F2.8 STM (144° vs 74°). The Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE has 36° more lens viewing angle, diagonal than the Canon RF 16mm F2.8 STM (144° vs 108°). Lens structure (elements/groups): 9/7 on the Canon RF 16mm F2.8 STM, 11/8 on the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE. Lens type: Ultra-wide lens on the Canon RF 16mm F2.8 STM, Wide fish-eye lens on the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE.

Lens structure (elements/groups)
- RF 16mm F2.8 STM:9/7
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:11/8
Lens type
- RF 16mm F2.8 STM:Ultra-wide lens
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:Wide fish-eye lens
Lens viewing angle, horizontal
- RF 16mm F2.8 STM:98°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Lens viewing angle, vertical
- RF 16mm F2.8 STM:74°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Lens viewing angle, diagonal
- RF 16mm F2.8 STM:108°
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:144°
Closest focusing distance
- RF 16mm F2.8 STM:0.13 m
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:0.2 m
Maximum aperture number
- RF 16mm F2.8 STM:2.8
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:3.5
Minimum aperture number
- RF 16mm F2.8 STM:22
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:16

Side by side

Differences highlightedShow differences only

Comparison of RF 16mm F2.8 STM, RF-S 3.9mm F3.5 STM DUAL FISHEYE
35 specifications	A Canon RF 16mm F2.8 STM View product	B Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE View product
Lens system8 differ
Component for	MILC	MILC
Lens structure (elements/groups)Differs	9/7	11/8
Lens typeDiffers	Ultra-wide lens	Wide fish-eye lens
Lens viewing angle, horizontalDiffers	98°	144°
Lens viewing angle, verticalDiffers	74°	144°
Lens viewing angle, diagonalDiffers	108°	144°
Closest focusing distanceDiffers	0.13 m	0.2 m
Control ringKnown for one	Unknown — not stated by the source	Yes
Image sensor formatKnown for one	Unknown — not stated by the source	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
Fixed focal lengthKnown for one	16 mm	Unknown — not stated by the source
Performance1 differ
AF actuator	STM	STM
Camera brands compatibility	Canon	Canon
CompatibilityKnown for one	Unknown — not stated by the source	EOS R7
Lens coating featuresKnown for one	Unknown — not stated by the source	Air Sphere Coating (ASC)
Maximum magnificationDiffers	0.26x	0.03x
Number of Ultra-low Dispersion (UD) elementsKnown for one	Unknown — not stated by the source	2
Auto focusKnown for one	Yes	Unknown — not stated by the source
Designidentical
Product colour	Black	Black
DustproofKnown for one	Unknown — not stated by the source	No
Moisture-resistantKnown for one	Unknown — not stated by the source	No
Weight & dimensions4 differ
DiameterDiffers	6.92 cm	11.2 cm
Filter sizeDiffers	43 mm	30.5 mm
LengthDiffers	40.1 mm	54.6 mm
Extended lengthKnown for one	Unknown — not stated by the source	8.37 cm
WeightDiffers	165 g	290 g
Packaging contentidentical
Lens cap included	Yes	Yes
Rear lens cap includedKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Package depthKnown for one	94 mm	Unknown — not stated by the source
Package heightKnown for one	117 mm	Unknown — not stated by the source
Package weightKnown for one	281 g	Unknown — not stated by the source
Package widthKnown for one	94 mm	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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