tag:blogger.com,1999:blog-36939759.post1285486042074248956..comments2024-01-17T07:03:57.842+00:00Comments on The Mad Ranter: Depth of FieldFlipChttp://www.blogger.com/profile/09449939046593105926noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-36939759.post-49582829429873522132009-04-20T17:20:00.000+01:002009-04-20T17:20:00.000+01:00Correct
High ISO means more sensitivity to light ...Correct<br /><br />High ISO means more sensitivity to light so yes more brightness and more 'grain'<br /><br />As for "low iso noise filtration" remember although similar to film in output the reasons for noise are different for digital sensors.<br /><br />Yes DoF is related to image magnification. See the end of my complex description for how it alters if you'd stepped back a metre and zoomed in.FlipChttps://www.blogger.com/profile/09449939046593105926noreply@blogger.comtag:blogger.com,1999:blog-36939759.post-83903888968605799212009-04-20T16:45:00.000+01:002009-04-20T16:45:00.000+01:00OK, so let me see if I can get this straigh.
Wide...OK, so let me see if I can get this straigh.<br /><br />Wide apature = more brightness + less focus.<br />Narrow apature = more focus + less brightness.<br /><br />Is that the correct way round?<br /><br />Similarly,<br /><br />High ISO number = more brightness + more grain.<br />Low ISO number = less brightness + less grain.<br /><br />Is that right?<br /><br />(And if so, why the heck would a camera have “low ISO noise filtration”?)<br /><br />Finally, is the possible DoF related to the degree of image magnification? Or are they independent?Orphihttp://blog.orphi.me.uk/noreply@blogger.com