Name: Objektīvs Canon EF 17-40mm F4.0L USM
Brand: Canon
Price: 929 EUR
Availability: OutOfStock

Preces informācija

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Produkta veids

Objektīvi

Zīmols

Canon

Sērija

Canon L

Modelis

EF 17-40mm F4.0L USM

Svars

475 g

Garums

9.7 cm

Diametrs

8.4 cm

Diafragma

F4.0L

Diafragmas daļu skaits

Minimālais fokusēšanas attālums

28 cm

Lēcas / Objektīva daļas

12 / 9

Fokusa garums

1.7 - 4 cm

Filtra diametrs

7.7 cm

Obligātā garantija

24 mēn

Saderīgie ražotāji

Canon

Papildus informācija

Asfēriskās lēcas elementi. Ātrs, kluss USM autofokuss. Izturība pret putekļiem un mitrumu

Bīstamības paziņojumi

Svarīgi! Objektīvs ir precīzs optiskais instruments, kas sastāv no kustīgiem stikla elementiem, elektronikas un ķīmiskajiem pārklājumiem. Nepareiza apkope, saules gaismas iedarbība vai kļūdas objektīva maiņas laikā var izraisīt neatgriezeniskus bojājumus kameras sensoram, acu apdegumus un sēnītes augšanu, kas iznīcina optiku.1. Optiskā drošība un acu aizsardzība (kritiski)Skatīšanās uz sauli (kritiski): Nekad neskatieties caur objektīvu (īpaši teleobjektīvu) tieši uz sauli. Objektīva elementi darbojas kā palielināmais stikls, izraisot tūlītējus un neatgriezeniskus acu bojājumus (tīklenes apdegumus).Uguns un sensora bojājumu risks: Objektīvs, kas atstāts bez vāciņa un pavērsts pret sauli, var fokusēt gaismas staru, kas izkausē plastmasas komponentus kameras iekšpusē, sadedzina aizvara lapiņas vai izdedzina caurumu sensorā.2. Objektīva maiņa un putekļu aizsardzībaNoteikums

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Canon EF 17-40/4.0 L USM
Preces apraksta angļu valodā:

The EF 17-40mm f/4L USM Lens from Canon is a high quality "L" series wide angle zoom lens for full frame and APS-C size DSLR cameras. It combines 1 high-precision molded glass aspherical element and 2 replica aspherical lenses to achieve the extended zoom range, while also correcting for common aberrations that arise during zooming. A Super UD (Ultra-low Dispersion) glass element minimizes the chromatic aberration of magnification which tends to occur with wide-angle lenses, to help eliminate color bleed along the edges of the subject and achieve high image contrast and resolution.

The lens' minimum focusing distance is just 11" (28cm) throughout its entire range of focal lengths, which makes it very useful for close-up work. All of the focusing and zooming action is done internally, with no changes in the size of the lens. Its ultrasonic autofocus motor enables smooth and silent autofocus action and manual focus override in One Shot AF mode allows precise manual focusing without switching into MF mode.

It only uses lead-free optics to help the environment, and features a circular diaphragm for improved background blur. The housing is water and dust resistant to help ensure reliable performance for both professionals and enthusiasts. Like many "L" lenses, it uses 77mm filters, but also has a rear gelatin filter slot behind the lens mount that can hold 3 gel filters.

This lens is a Canon 'EF' series lens, indicating it is for use with full-frame cameras. However, it also works with APS-C format DSLRs and offers a 35mm focal length equivalence of 27-64mm, making it an ideal medium-aperture standard zoom lens.

A super wide-angle zoom lens for full-frame DSLR and 35mm film cameras that offers a 27-64mm focal length equivalent when used on APS-c size sensors.
Uses 3 aspherical lens elements and Canon Super UD ultra-low dispersion glass for reduced aberrations and overall sharp, high contrast imaging
An ultrasonic autofocus motor provides fast, smooth and quiet AF action, particularly important when shooting video.
Manual focus override enables precise manual focusing even when in One Shot AF mode.
Internal zooming and focusing systems
As a Canon "L" series lens it provides professional levels of moisture and dust resistance.
Circular aperture diaphragm for better, more natural looking background blurring
Accepts 77mm filters, as well as gelatin filters at the rear of the lens.