History of Canon EF 17-40mm f/4L USM

Last update Oct. 21^st 2010 10:33:59 PM

Creation date Feb. 24^th 2010 5:33:55 PM

• 
  Vanina on Apr. 6^th 2010 2:14:03 AMReport

  Editor

  Publique

• 
  Vanina on Feb. 24^th 2010 5:46:52 PMReport

  Website

  http://www.usa.canon.com/consumer/controller?act=ModelDetailAct&fcategoryid=148&modelid=8940

• 
  Vanina on Feb. 24^th 2010 5:33:55 PMReport

  Weight

  500 g

  Price

  819.99 USD

  Lenses type

  Ultra wide

  Focale length

  17-40mm

  Zoom system

  Rotating type

  L-series lens

  yes

  USM

  yes

  Autofocus

  yes

  Focus Adjustement

  Inner focusing system with USM

  Filter size

  77 mm

  Minimum focus distance

  28 cm

  Magnification

  0.25x

  Angle of view

  104°-57°

  Non visible value updated

  Maximum Diameter

  83.5 mm

  Number of elements

  12

  Number of groups

  9

  Accepts MR-14EX Macro Ring Lite flash

  no

  Accepts MR-24EX Macro Twing Lite flash

  no

  Tripod collar

  no

  Max. Aperture

  1:4

  Min. Aperture

  22