http://www.photo-facts.com/WP Camera technology, jargon and techniques explained • Use the A-Z index or the search box to look up your chosen term Wed, 08 Sep 2010 07:41:38 +0000 http://wordpress.org/?v=2.8.2 en hourly 1 http://www.photo-facts.com/WP/archives/2748 http://www.photo-facts.com/WP/archives/2748#comments Mon, 19 Apr 2010 07:00:00 +0000 admin http://www.photo-facts.com/WP/archives/2748 Photoshop's Lens Correction filter has controls for fixing many common lens aberrations, including distortion, chromatic aberration and vignetting.]]> http://www.photo-facts.com/WP/archives/2748/feed 0 http://www.photo-facts.com/WP/archives/6226 http://www.photo-facts.com/WP/archives/6226#comments Thu, 01 Oct 2009 12:42:12 +0000 admin http://www.photo-facts.com/WP/?p=6226 The K-7 is Pentax's top digital SLR and is aimed at enthusiasts and professionals. The built-in anti-shake, distortion correction and aberration removal are excellent, but Pentax's lens range is patchy.]]> http://www.photo-facts.com/WP/archives/6226/feed 2 http://www.photo-facts.com/WP/archives/2846 http://www.photo-facts.com/WP/archives/2846#comments Thu, 21 May 2009 13:45:00 +0000 admin http://www.photo-facts.com/WP/archives/2846 This is a fixed focal length lens, rather than a zoom. Zooms have taken over because they are more convenient, but prime lenses are more compact and offer better performance, with little or no distortion and, sometimes, better contrast and [...]]]> http://www.photo-facts.com/WP/archives/2846/feed 0 http://www.photo-facts.com/WP/archives/2597 http://www.photo-facts.com/WP/archives/2597#comments Tue, 19 May 2009 17:45:00 +0000 admin http://www.photo-facts.com/WP/archives/2597 This is a lens defect that produces colour fringes around bright objects near the edges of the frame. Chromatic aberration is largely unavoidable in zoom lenses, though the best lenses do keep it well suppressed. It’s a result of the [...]]]> http://www.photo-facts.com/WP/archives/2597/feed 0