EF 17-40mm f/4L USM EF17-40mm f/4L USM е лек, много широкоъгълен EF вариообектив на Canon. Той е особено добре подготвен за работа с цифровите SLR фотоапарати от серията EOS, които имат по-голям коефициент на Not much difference between the two lenses. In the extreme corners the 17-40 is sharper. 17-40 has noticeably less vignetting. 45mm f/6.3 vs 40mm f/4: When both wide open, the sharpness on the 15-45 is better. But stopping down the 17-40 to f/5.6 results in just as sharp images as the 15-45 wide open at 45mm f/6.3. Canon calls this the Canon EF 24-105mm f/4L IS II USM: EF: Electronic Focus, as all Canon's lenses have been since 1987. L: Expensive as L. IS: Image Stabilization. II: Canon's second 24-105mm f/4L IS. USM: Ultrasonic Autofocus Motor. Optics. Internal construction. Aspherical elements and stabilizer group. 17 elements in 12 groups. 4 aspherical
Kitűnő optikai teljesítmény. Az EF17-40 mm f/4L USM objektív kilenc csoportban elrendezve 12 lencseelemet tartalmaz. A lencseelemek Super Spectra bevonata gondoskodik a kitűnő színkiegyenlítettségről és minimálisra csökkenti a szellemképet, valamint a becsillanást. A 17-40 mm zoomtartományban egyenletesen kitűnő képminőség
Reviews; Opinion; How to; Versus; Deals; Coupons; Trending. Samsung Galaxy S24; iPhone 15 Pro Max review Canon EF 17-40mm f/4L USM. An old-timer that’s still got something to offer Gyártó: Canon Modell: EF 17-40mm f/4L USM Műszaki adatok Gyújtótávolság: 17-40 mm Kompatibilitás: Canon Felépítés: 12 lencsetag/9 csoport Filter méret: 77 mm Apertura tartomány: 4 - 22 Minimum fókusz távolság: 0.28 m Nagyítás: 0.24 Látószög: Horizontális: 93°-49°20' Vertikális: 70°30'-34° Diagonális: 104-57°30'

All of these lenses are best in the corners stopped down to about f/11. 17-40mm f/4 L (2003-today) The Canon 17-40mm f/4 L (2003-today) is Canon's lightest current ultrawide zoom, and has optical performance as good as the newest Canon 16-35mm L II, but it's only f/4, not f/2.8. 17-35mm f/2.8 L (1995-2001)

bqgQiV.
  • 05lr2ap8ly.pages.dev/368
  • 05lr2ap8ly.pages.dev/270
  • 05lr2ap8ly.pages.dev/39
  • 05lr2ap8ly.pages.dev/185
  • 05lr2ap8ly.pages.dev/204
  • 05lr2ap8ly.pages.dev/13
  • 05lr2ap8ly.pages.dev/169
  • 05lr2ap8ly.pages.dev/306
  • 05lr2ap8ly.pages.dev/379

    • canon ef 17 40mm f 4l usm review