Canon EF 17-40mm f/4L USM 17-40mm
The constant f/4 aperture and weather-sealed L-series construction provide consistent exposure and durability across the 17-40mm full-frame range. Its ring-type USM autofocus is fast and silent, while a non-rotating 77mm filter thread simplifies polarizer use. This lens is best for travel photographers who need a rugged, versatile ultra-wide zoom without the bulk of an f/2.8 lens.
Focal length 17-40mm
Aperture f/17
Mount Canon EF
Weather Sealed Sì
Weight 57 g
af type USM
lens type zoom
65 Punteggio Complessivo
Prezzo 0 MXN
Snapshot
Pro e contro
Pros
- Strong build (100th percentile) 100th
- Strong af (94th percentile) 94th
- Strong versatility (76th percentile) 76th
- Strong macro (73th percentile) 73th
Cons
- Below average bokeh (30th percentile)
What owners think
The proof
Prestazioni
Scheda tecnica
Specifiche tecniche complete
Optics
| Type | zoom |
| Focal Length Min | 17 |
| Focal Length Max | 40 |
| Aspherical Elements | 3 |
| ED Elements | 1 |
Aperture
| Max Aperture | f/17 |
| Min Aperture | 4 |
| Constant | Yes |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.1 kg / 0.1 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | USM |
Focus
| Min Focus Distance | 279 |
Rispetto alla concorrenza
| Spec | Canon EF 17-40mm f/4L USM 17-40mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III-A 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR | Panasonic LUMIX S S-R28200 | Meike 23mm F1.4 Ultra Wide Angle APS-C Frame Auto Focus Fixed Prime Portrait Lenses |
|---|---|---|---|---|---|---|
| Focal Length | 17-40mm | 16-300mm | 18-300mm | 16-85mm | 28-200mm | 23mm |
| Max Aperture | f/17 | f/3.5 | f/3.5 | f/3.5 | f/4 | f/1.4 |
| Mount | Canon EF | Sony E | Fuji X | Nikon F | L-Mount | Sony E |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | true | true | false | false | true | false |
| Weight (g) | 57 | 615 | 92 | 59 | 413 | 298 |
| AF Type | USM | HLA | VXD linear motor | AF-S | Autofocus | STM |
| Lens Type | zoom | zoom | zoom | zoom | macro | prime |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon EF 17-40mm f/4L USM 17-40mm | 94.3 | 29.5 | 99.8 | 72.6 | 50.7 | 41.9 | 76.3 | 59.8 | 35.8 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 55.1 | 86.6 | 57.6 | 86.7 | 98.9 | 79.9 | 99.6 | 78.1 | 99 |
| Tamron Di III-A 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.2 | 78 | 96.2 | 88.6 | 73.5 | 79.9 | 99.2 | 83.2 | 80.7 |
| Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR Compare | 55.1 | 78 | 98.5 | 59.9 | 64.2 | 79.9 | 94.2 | 88.1 | 92.3 |
| Panasonic LUMIX S S-R28200 Compare | 55.1 | 80.8 | 73.5 | 71.7 | 90.9 | 74.5 | 95.6 | 62.7 | 99.4 |
| Meike 23mm F1.4 Ultra Wide Angle APS-C Frame Auto Focus Fixed Prime Portrait Lenses Compare | 86 | 94.7 | 70.8 | 98.4 | 74.9 | 96.8 | 34 | 33.4 | 80.7 |
Punteggi per utilizzo
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