Sigma 18-200mm F3.5-6.3 DC lens review
Gordon Laing, July 2006
Gallery, taken with Nikon D2X
The following images were taken with the Nikon D2X using the Sigma 18-200mm
F3.5-6.3 DC lens. Each image was recorded using the Large Fine JPEG mode,
optimised for quality rather than size. The D2X was set to Matrix metering
with A for Image Sharpening and Tone Compensation. The individual file size,
exposure mode, shutter speed, aperture, ISO and lens details are listed for
The crops are taken from the original files, reproduced at 100% and saved
in Adobe Photoshop CS2 as JPEGs with the default Very High quality preset,
while the resized full images were made in Photoshop CS2 and saved with the
default High quality preset. The three crops are typically taken from far
left, central and far right portions of each image.
Festival: 6.04MB, Program, 1/90, f4.8, ISO 400, 18-200mm at 34mm (equivalent
The wide focal
range of the Sigma 18-200mm allowed us to easily switch from tight
portraits to wider scene-setting shots during this Chinese New Year
Here we zoomed-out to 34mm to grab an opportunist shot of the Dragon
carriers entering their bus.
The upper crop shows a little fringing, but nothing to worry about.
Noise levels of the D2X at 400 ISO are also very clean.
Decoration: 6.10MB, Program, 1/320, f9, ISO 200, 18-200mm at 31mm (equivalent
This detail shot of lanterns was taken with the Sigma 18-200mm
Bathed in bright sunlight with a deep blue sky, these are conditions
where any lens should perform well, and as you'd hope the Sigma
crops are clean and show a high level of detail.
Portrait: 5.50MB, Program, 1/100, f6.3, ISO 400, 18-200mm at 200mm (equivalent
As explained in
the first example, the beauty of having an 11.1x optical zoom is the
ability to quickly switch from wide angle to a tight portrait without
having to swap lenses.
Here we did just that, grabbing an opportunist portrait from a distance
just moments after shooting wide-angle scenes.
The crops are again detailed with only slight evidence of camera shake
as a result of the long focal length and modest exposure.
City: 5.59MB, Program, 1/640, f12, ISO 400, 18-200mm at 200mm (equivalent
This shot was again taken at the Sigma's longest focal length,
but bathed in bright sunlight the faster exposure eliminated any
concerns of camera-shake.
The crops are detailed but reveal a little fringing in areas of
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