Английская Википедия:Canon EF 50-200mm lens
Шаблон:Short description The Canon EF 50-200mm Шаблон:F/3.5-4.5 is an EF mount normal-to-telephoto zoom lens. It is one of the first lenses in the Canon EF series.[1]
In June 1988, Canon announced the EF 50-200mm Шаблон:F/3.5-4.5L lens. This lens has very similar physical qualities compared to the EF50-200mm Шаблон:F/3.5-4.5.[2] The main difference is that this is a L lens, meaning that the lens contains special lens elements which better correct for various aberrations. In the case of the EF 50-200mm 3.5-4.5 L, both an ultra-low dispersion ("UD") and a synthetic crystal fluorite ("Fluorite") were used. Aside from the different optical construction and slight variation in weight and length, the L and non-L lens were basically identical. Note that at this time period Canon did not protect its L zooms against adverse elements such as weather. Both this lens and the similar duo EF 100-300mm 5.6 and its L variant lacked weather sealing construction, sharing the same housing as their non-L counterparts. Canon did, however, supply the L versions with lens hoods and cases at the time of purchase, which were available for the non-L lenses for separate purchase.
Specifications
| Attribute | Шаблон:F/3.5-4.5 | Шаблон:F/3.5-4.5L |
|---|---|---|
| Image | ||
| Key features | ||
| Full-frame compatible | Yes Yes | |
| Image stabilizer | No No | |
| Ultrasonic Motor | No No | |
| Stepping Motor | No No | |
| L-series | No No | Yes Yes |
| Macro | No No | |
| Technical data | ||
| Focal length | 50 mm–200 mm | |
| Aperture (max/min) | Шаблон:F/3.5–Шаблон:F/4.5 / Шаблон:F/29 | |
| Construction | 16 elements / 13 groups | 16 elements / 14 groups |
| # of diaphragm blades | 8 | |
| Closest focusing distance | Шаблон:Cvt | |
| Max. magnification | 0.23 x | |
| Horizontal viewing angle | ||
| Vertical viewing angle | ||
| Diagonal viewing angle | ||
| Physical data | ||
| Weight | Шаблон:Cvt | Шаблон:Cvt |
| Maximum diameter | Шаблон:Cvt | |
| Length | Шаблон:Cvt | Шаблон:Cvt |
| Filter diameter | 58 mm | |
| Accessories | ||
| Lens case | ||
| Lens hood | ||
| Retail information | ||
| Release date | December 1987 | June 1988 |
| Currently in production? | No No | |
| MSRP yen | 72,100 | 105,500 |
References
Шаблон:ReflistШаблон:Canon EF lenses
