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Hands-on: Canon EOS 400D and an EF 70-200mm f/4L USM lens |
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Written by Danrok
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Tuesday, 14 August 2007 |
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Page 1 of 3  EF 70-200mm f/4.0L USM IntroductionI have been using my EOS 400D, with the basic 18-55mm kit lens, for the last nine months. A few weeks back, I took the plunge and decided to invest in a professional Canon lens. So, I've written this article after having used the lens, near enough, every day since then. I purchased the lens from dzone2 on ebay.co.uk, they're based in Hong Kong, and it was delivered to me in the U.K., within two days. The EF 70-200mm f/4 L USM lens is a popular choice, given that it is at the lower price range, and is very versitile. It features fluorite and Super UD lens elements for sharp results. Focusing can be manually controlled, or done automatically via an ultrasonic motor.
Lens Specifications| Image size | 24 x 36mm | Focal Length
| 70 - 200mm f/4 | | Minimum Aperture | f/32 | | Angle of View | Diagonal: 34o - 12o
Vertical: 19o 30' - 7o
Horizontal: 29o - 10o | | Min. Focusing Distance | 1.2m / 3.9 feet | Max. Magnification and
Field of View
| 0.21x (at 200mm)
approx. 300 x 450mm - 114 x 171mm (at 1.2m)
| Filter Diameter
| Ø 67mm | Max. Diamater and Length
| Ø 76 x 172mm / 3 x 6.7 inch |
Lens Features- USM motor for quiet and fast auto-focusing
- "L-glass" fluorite and Super UD lens elements
- Can be manually focused whilst in auto-focus mode
- Can be used with Canon's EF1.4x II or EF2x II extenders, for increased magnification
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