Lens nikon af 80-200mm f2.8 d ed đánh giá

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Manufacturer description: Not a new lens, but still a great performer, the Nikon AF-Nikkor 80-200mm F2.8D ED is solid, simple and gives great images on Nikon's FX and DX format DSLRs. A favorite among photojournalists for many years now, the 80-200mm's appeal lies in its excellent optical quality, even 'wide open' at F2.8, and these days, its low cost relative to newer optically stabilized telephoto zooms is impossible to ignore. If you can live without VR and SWD focus (and a minimum focus distance of 1.5m) the 80-200mm F2.8D is definitely worthy of consideration, but if you can afford it, the current AF-S Nikkor 70-200mm F2.8G ED VR II is a better lens all-round.

Lens type Zoom lens Focal length 80–200 mm Image stab. No Lens mount Nikon F (FX) Max aperture F2.8 Min aperture F22 Min focus 1.50 m (59.06″) Max magnification 0.17× Weight 1300 g (2.87 lb) Length 187 mm (7.36″)

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Nikkor AF 80-200mm f/2.8D ED - Review / Lab Test Report - Analysis

Lens Reviews - Nikon / Nikkor (APS-C)

Article Index Introduction Analysis

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Distortion

The AF 80-200mm f/2.8D ED has a very moderate zoom ratio and the level of distortion is pretty moderate accordingly. At 80mm there is marginal barrel distortion (0.35%) changing to moderate pincushion distortion at 200mm (0.77%).

80mm:

135mm:

200mm:

The chart above has a real-world size of about 120x80cm.

Vignetting

On full format SLRs the AF 80-200mm f/2.8D ED has a rather mediocre reputation regarding vignetting especially at the 200mm setting. However, on an APS-C DSLR the lens can take advantage of a sweet spot effect. The issue is very well controlled here and not overly field relevant even at wide-open aperture.

MTF (resolution)

In the MTF lab the lens was able to produce some quite impressive resolution figures. However, the tested sample also exhibited a slight centering defect which may have polluted the data a little bit. I had to reduce the number of measurement points to get meaningful values.

The center resolution is the lens is great throughout the zoom range. At 80mm it even scratches the resolution limits of the D200 sensor at f/5.6. The border performance is slightly lower (but still very good) at wide-open aperture but it improves gradually towards medium aperture settings.

Please note that the MTF results are not directly comparable across the different systems!

Below is a simplified summary of the formal findings. The chart shows line widths per picture height (LW/PH) which can be taken as a measure for sharpness. If you want to know more about the MTF50 figures you may check out the corresponding Imatest Explanations