tag:blogger.com,1999:blog-4441298819361810666.post6712776593021481208..comments2023-05-03T10:48:02.531+02:00Comments on The PhotoZone: Carpe diem IIAlistair Scotthttp://www.blogger.com/profile/01451574506124547294noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-4441298819361810666.post-86664497856484128112008-02-15T10:00:00.000+01:002008-02-15T10:00:00.000+01:00Ah ... sorry Catherine. Jargon.The dynamic range i...Ah ... sorry Catherine. Jargon.<BR/><BR/>The dynamic range is the difference between the light parts and the dark parts of an image. One time when this often gives problems is at sunrise/sunset when there is a huge difference between the bright sky and the dark land. Digital cameras are worse at dealing with this than good old film.<BR/><BR/>What happens is that if you set the exposure correctly for the sky, the land will be featureless black, but if you expose correctly for the land the sky gets burned-out.<BR/><BR/>In this picture I set the exposure for the sky and 'tweaked' the mountains and water a little (brought up the exposure) using software.<BR/><BR/>Another, and better, way of doing it is to use a graduated neutral density filter when you take the photo. This is a filter that fits in front of the lens which shades from a neutral black at the top to completely clear at the bottom. In other words it cuts the light from the sky (without changing its colour ... hence the 'neutral') but does not affect the land.<BR/><BR/>I didn't own such a filter when I took this photo. I do now.Alistair Scotthttps://www.blogger.com/profile/01451574506124547294noreply@blogger.comtag:blogger.com,1999:blog-4441298819361810666.post-60442585325944903062008-02-14T23:08:00.000+01:002008-02-14T23:08:00.000+01:00"Tweaking the dynamic range"?please explain!"Tweaking the dynamic range"?<BR/>please explain!Catherine Nelson-Pollardhttps://www.blogger.com/profile/13292389495117523090noreply@blogger.comtag:blogger.com,1999:blog-4441298819361810666.post-51447477984170893552008-02-14T19:54:00.000+01:002008-02-14T19:54:00.000+01:00gorgeous!gorgeous!Melissahttps://www.blogger.com/profile/14201329885932346121noreply@blogger.com