Samsung 30 mm F2 Handbuch Seite 18

Using the Filter
NX11_18-55 Lens.indb 18
 The filter installed onto the lens is a precise optical product. Keep it away from dust, dirt or scratch.
Do not install 2 or more filters at the same time.
 Using 2 or more filters at the same time may deteriorate the image quality and may cause vignetting.
 In case of a thick framed filter, the vignetting can occur with a wide-angle lens.
What is vignetting?
Vignetting refers to when the edges or outer parts of an image get dark or are hidden in black due to
the reduced intensity of light in surroundings of the screen. It can also occur when accessories such as
converters or filters are mounted, as the viewing angle of the lens is hidden.
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2011-01-21 오후 6:35: