Product comparison · 2 lenses

Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE vs Canon RF800mm F5.6 L IS USM

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

Key differences

The Canon RF800mm F5.6 L IS USM has 2.4 m more closest focusing distance than the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE (2.6 m vs 0.2 m). The Canon RF800mm F5.6 L IS USM has 48 more minimum aperture number than the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE (64 vs 16). The Canon RF800mm F5.6 L IS USM has 2 more diaphragm blades than the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE (9 vs 7). Only the Canon RF800mm F5.6 L IS USM has dustproof. Lens structure (elements/groups): 11/8 on the Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE, 26/18 on the Canon RF800mm F5.6 L IS USM.

Lens structure (elements/groups)
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:11/8
- RF800mm F5.6 L IS USM:26/18
Lens type
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:Wide fish-eye lens
- RF800mm F5.6 L IS USM:Super telephoto lens
Closest focusing distance
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:0.2 m
- RF800mm F5.6 L IS USM:2.6 m
Minimum aperture number
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:16
- RF800mm F5.6 L IS USM:64
Number of diaphragm blades
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:7
- RF800mm F5.6 L IS USM:9
Maximum magnification
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:0.03x
- RF800mm F5.6 L IS USM:0.34x
Product colour
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:Black
- RF800mm F5.6 L IS USM:Black, White
Dustproof
- RF-S 3.9mm F3.5 STM DUAL FISHEYE:No
- RF800mm F5.6 L IS USM:Yes

Side by side

Differences highlightedShow differences only

Comparison of RF-S 3.9mm F3.5 STM DUAL FISHEYE, RF800mm F5.6 L IS USM
32 specifications	A Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE View product	B Canon RF800mm F5.6 L IS USM View product
Lens system5 differ
Component for	MILC	MILC
Lens structure (elements/groups)Differs	11/8	26/18
Lens typeDiffers	Wide fish-eye lens	Super telephoto lens
Lens viewing angle, horizontalKnown for one	144°	Unknown — not stated by the source
Lens viewing angle, verticalKnown for one	144°	Unknown — not stated by the source
Lens viewing angle, diagonalKnown for one	144°	Unknown — not stated by the source
Closest focusing distanceDiffers	0.2 m	2.6 m
Control ringKnown for one	Yes	Unknown — not stated by the source
Image sensor formatKnown for one	APS-C	Unknown — not stated by the source
Lens mount interface	Canon RF	Canon RF
Maximum aperture numberKnown for one	3.5	Unknown — not stated by the source
Minimum aperture numberDiffers	16	64
Number of diaphragm bladesDiffers	7	9
Image stabilizerKnown for one	Unknown — not stated by the source	Yes
Performance2 differ
AF actuatorKnown for one	STM	Unknown — not stated by the source
Camera brands compatibility	Canon	Canon
CompatibilityKnown for one	EOS R7	Unknown — not stated by the source
Lens coating featuresDiffers	Air Sphere Coating (ASC)	Air Sphere Coating (ASC), Super Spectra Coating (SSC)
Maximum magnificationDiffers	0.03x	0.34x
Number of Ultra-low Dispersion (UD) elementsKnown for one	2	Unknown — not stated by the source
Ultrasonic motor (USM)Known for one	Unknown — not stated by the source	Yes
Design2 differ
Product colourDiffers	Black	Black, White
DustproofDiffers	No	Yes
Moisture-resistantKnown for one	No	Unknown — not stated by the source
Weight & dimensions4 differ
DiameterDiffers	11.2 cm	16.3 cm
Filter sizeDiffers	30.5 mm	52 mm
LengthDiffers	54.6 mm	432 mm
Extended lengthKnown for one	8.37 cm	Unknown — not stated by the source
WeightDiffers	290 g	3.14 kg
Packaging contentidentical
Lens cap includedKnown for one	Yes	Unknown — not stated by the source
Rear lens cap includedKnown for one	Yes	Unknown — not stated by the source
Bag includedKnown for one	Unknown — not stated by the source	Yes

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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