Distortion covers quite a range, from a bit over 1% barrel at 18mm, to about 0.7% pincushion at 50mm, finally decreasing to about 0.4% at 200mm. Vignetting is a bit higher than in the competing models, nearly 0.8 of a stop wide open at 18mm, and higher across most of its range than with the third-party units. This seems to be an area where the Nikon bests its third-party competitors, in that CA never gets as bad at the extremes of its focal length range as is the case with either competing model, especially at the telephoto end. Center sharpness when stopped down to f/8 is excellent at shorter focal lengths, but the image as a whole softens slightly at focal lengths of 100mm and above.Ĭhromatic aberration in this lens is moderate at both ends of the zoom range (wide and telephoto) and lower over a range of medium focal lengths. The good news is that the center of the frame is generally pretty sharp, the corner softness improves rapidly as you move away from the corners, and stopping down by one or two f-stops significantly improves corner sharpness. In the case of the Nikon 18-200, the tradeoffs are somewhat soft corners at maximum aperture and medium focal lengths and somewhat high geometric distortion across a range of focal lengths.
#Objektiv nikon 18 200 free
Because of this, it's quite light and compact relative to its exceptional zoom range.Īn old expression says that there's never a free lunch, and this is especially true with lenses. Like its competitors, this is a reduced image-circle lens, designed for use on cameras with APS-C sized sensors. It competes against lower-cost, non-VR models from Sigma and Tamron. This is Nikon's version of the 18-200mm "vacation lens", so-called because it's a great choice for those situations when you only want to pack along a single lens, to cover a wide range of shooting conditions. Note - the blur results for this lens have now been updated using our micro focus bracketing protocol (450 test shots, 1350 total analyses performed), to eliminate the effect of our D2x's slight backfocusing with this lens. In addition, the new lens has a minimum focus distance of 0.5m applicable to the entire zoom range. Like all AF-S Nikkors, the AF-S DX VR Zoom-Nikkor 18-200mm f/3.5-5.6G IF-ED features the compact Silent Wave Motor which enables high-speed autofocus that is not only extremely accurate but also super quiet, making it ideal for wildlife photography. And second, VR Active Mode, which compensates for pronounced or regular vibration, for example when shooting from a moving vehicle. First, the VR Normal Mode, which compensates for camera shake and includes automatic panning detection, as well as automatic tripod detection.
Nikon's second generation VR technology offers users two modes to match different shooting conditions.
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