Английская Википедия:Canon EF 20-35mm lens
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Шаблон:Short description The EF 20–35mm lens is a wide-angle lens made by Canon Inc., with an EF mount. There are two models, an L-series Шаблон:F/2.8L[1] and a consumer-grade Шаблон:F/3.5–4.5.[2]
Table
Attribute | Шаблон:F/2.8L | Шаблон:F/3.5–4.5 |
---|---|---|
Image | Файл:Canon EF 20-35mm f3.5-4.5 lens.JPG | |
Key features | ||
Image stabilizer | No No | |
Environmental Sealing | No No | |
USM | No No | Yes Yes |
L-series | Yes Yes | No No |
Diffractive Optics | No No | |
Technical data | ||
Maximum aperture | Шаблон:F/2.8 | Шаблон:F/3.5–4.5 |
Minimum aperture | Шаблон:F/32 | Шаблон:F/22–27 |
Filter diameter | 72 mm | 77 mm |
Horizontal viewing angle | ||
Vertical viewing angle | ||
Diagonal viewing angle | ||
Physical data | ||
Weight | 570 g | 340 g |
Max. Diameter x Length | 89 mm x 79.2 mm | 83.5 mm x 68.9 mm |
Groups/elements | 12/15 | 11/12 |
# of diaphragm blades | 8 | 5 |
Closest focusing distance | 0.5 m | 0.34 m |
Retail information | ||
Release date | October 1989 | March 1993 |
MSRP ¥ | ¥190,700 | ¥77,000 |
Successor lenses
The 20-35mm lens was followed by two other L-series ultra-wide lenses:
- [[Canon EF 17–35mm lens|EF 17–35mm Шаблон:F/2.8L]]
- [[Canon EF 16–35mm lens|EF 16–35mm Шаблон:F/2.8L USM]]
- The [[Canon EF 17–40mm lens|EF 17–40mm Шаблон:F/4L USM]] is another wide-angle lens that has a similar focal range
References
External links