File:GND demo.jpgDescriptionGND demo.jpg By me, a picture demonstrating the effect of a graduated neutral-density filter. Date 18 March 2006 (according to Exif data) Source
File:GND demo-with-fake-GND.jpgDescriptionGND demo-with-fake-GND.jpg Based on Image:GND_demo.jpg but with GIMP-produced GND effect next to actual GND filter. This shows the limitations
File:GND demo-white-marked.jpgDescriptionGND demo-white-marked.jpg Based on Image:GND_demo.jpg, marking white pixels in that image as red. This shows that data is lost by not using a GND filter
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