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Canon EF 70-200mm f/4L IS USM

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Canon
Produktnavn:
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EF 70-200mm f/4L IS USM
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1258B009
Kategori
The light-gathering device of a camera, typically containing a group of compound lenses. Lenses come in different lengths, with very long lens used for long-distance photography.
Kameraobjektiver
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På markedet siden: 06 jul 2007
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Information ændret d: 31 maj 2017 21:08:31
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Kort beskrivelse Canon EF 70-200mm f/4L IS USM :
Kort redaktionelle beskrivelse af %%titel%%

EF 70-200mm f/4L IS USM
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Canon EF 70-200mm f/4L IS USM:
Den officielle marketing tekst af Canon EF 70-200mm f/4L IS USM som er leveret af producenten

4-stop IS
The EF 70-200mm f/4L IS USM features the world's first 4-stop Image Stabilizer (IS). Ideal for handheld work, the exceptionally accurate and sensitive IS negates the need for a tripod in many conditions. Shutter speeds up to 4 stops slower than would be otherwise possible (e.g. 1/15 sec instead of 1/200) can be used with no perceptible increase in image blur. For stabilised panning, IS Mode 2 corrects only for unwanted vertical shake.

L-series quality
The lens embodies Canon’s highest standards of L-series optics, build quality, reliability and operability. Crisp, high contrast image quality is assured right across the frame and throughout the entire zoom range. A reliable partner in tough conditions, the metal and polycarbonate construction features special environmental seals to prevent the ingress of dust and moisture.

Lightweight
With a length of just 172mm and weighing only 760g, the EF 70-200mm f/4L IS USM is ideal for assignments where there is a need to travel light without compromising performance, operability or image quality.

Fixed aperture
With no change in aperture over the full focal length range, photographers can set exposure at the widest aperture and zoom through to 200mm without slowing shutter speed. Lens length remains constant during zooming and focusing.

Fluorite and UD lens elements
The lens incorporates a single Fluorite and two UD (ultra-low dispersion glass) lens elements to suppress secondary chromatic aberrations. The result is crisp, high contrast, undistorted images throughout the entire zoom range, without colour fringing at subject outlines.

Auto focus
A Ring-type USM (Ultrasonic motor) delivers responsive, high-speed, silent auto focus. Holding torque is excellent, stopping the focus lens group with precision and without overshoot. Full time manual focus override is available without switching out of AF. Minimum focus distance is 1.2m throughout the zoom range.

Super Spectra coatings
Optimised Super Spectra coatings and lens element shaping suppress flare and ghosting. Coatings also help achieve true colour balance and increase contrast.

Pleasing background blur
The Electro Magnetic Diaphragm (EMD) features an almost perfectly circular aperture to create an even and attractive blur from out-of-focus backgrounds.

Accessories
A cylindrical bayonet hood and soft case are included.

Kort opsummerende beskrivelse Canon EF 70-200mm f/4L IS USM:
Denne korte opsummering af %%titel%% data-sheet er en auto-generet som er baseret på produkt titlen og de første seks nøgle specikationer.

Canon EF 70-200mm f/4L IS USM, 20/15, 1,2 m, 7,6 cm, 6,7 cm, 17,2 cm, 760 g

Lang opsummerende beskrivelse Canon EF 70-200mm f/4L IS USM:
Dette er en lang auto-generet beskrivelse af %%titel%% som er baseret på de første tre specifikationer i de første 5 gruppe specifikationer.

Canon EF 70-200mm f/4L IS USM. Linse Struktur: 20/15, Korteste fokuseringsafstand: 1,2 m. Diameter: 7,6 cm, Filterstørrelse: 6,7 cm, Længde: 17,2 cm. Forstørrelse: 0,21x

Linse- og objektivsystem
Linse Struktur *
The way in which a camera lens is constructed.
20/15
Minimum blændeåbning *
The minimum size of the hole through which light enters a camera.
32
Korteste fokuseringsafstand *
1,2 m
Billedstabilasator *
This camera function compensates for slight shaking movements caused by an unstable position and ensures smooth footage even in suboptimal conditions.
Yes
Antal blændere
7
Præstation
Autofokus
Device focusing a camera or other piece of equipment automatically.
Yes
Præstation
Manuel fokus
Yes
Vægt og størrelse
Diameter *
Distance from one side of a body (circle or sphere) to the other side, measured by a straight line passing through the centre of the body.
7,6 cm
Filterstørrelse *
A filter is a screen, plate, or layer of a substance which absorbs light or other radiation or selectively absorbs some of its components e.g. a UV filter to reduce UV light. Filters come in various sizes.
6,7 cm
Længde *
The measurement or extent of something from end to end.
17,2 cm
Vægt *
Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
760 g
Andre funktioner
Forstørrelse
The degree to which something is or can be magnified (made to appear larger than it is).
0,21x
Kilde Testseek resumé Gennemsnitlig vurdering
Reviews
Updated:
2011-09-26
Testseek har samlet 14 ekspertanmeldelser for Canon EF 70-200mm f/4L IS USM og den gennemsnitlige ekspertbedømmelse er 88 af 100. Den gennemsnitlige score reflekterer ekspertpanelets opfattelse af dette produkt. Klik nedenfor og brug Testseek for at se alle bedømmelser, produkter og konklusioner.
88%
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