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/7833 http://www.photo-facts.com/WP/archives/7833#comments Wed, 04 Nov 2009 09:07:22 +0000 admin http://www.photo-facts.com/WP/?p=7833 Pictures taken against the light or in bright sun often have dense shadows that don’t show much detail. They may also have overexposed highlights which come out a blank white. Canon’s i-Contrast feature, found of some of its compact cameras, [...]]]> http://www.photo-facts.com/WP/archives/7833/feed 0 http://www.photo-facts.com/WP/archives/2710 http://www.photo-facts.com/WP/archives/2710#comments Mon, 12 Oct 2009 08:00:00 +0000 admin http://www.photo-facts.com/WP/archives/2710 HDR stands for High Dynamic Range. It’s a technique for recording very bright areas of a scene (like skies) and very dark areas (like shadowed buildings and foregrounds) and displaying them with similar brightness levels. It can be a complicated and [...]]]> http://www.photo-facts.com/WP/archives/2710/feed 0 http://www.photo-facts.com/WP/archives/2855 http://www.photo-facts.com/WP/archives/2855#comments Sun, 11 Oct 2009 08:00:00 +0000 admin http://www.photo-facts.com/WP/archives/2855 RAW files are an image file format available on some high-end compact cameras and digital SLRs. Instead of processing the data to produce a JPEG image, the camera saves the data as it’s recorded by the sensor in its ‘raw’ [...]]]> http://www.photo-facts.com/WP/archives/2855/feed 0 http://www.photo-facts.com/WP/archives/2671 http://www.photo-facts.com/WP/archives/2671#comments Sun, 04 Oct 2009 08:00:00 +0000 admin http://www.photo-facts.com/WP/archives/2671 Fill light tools in software lighten the darker areas of images without affecting the midtones or highlights. They use different techniques for doing this, either shifting the darker tones upwards in the brightness scale or using selective masking techniques to lighten [...]]]> http://www.photo-facts.com/WP/archives/2671/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/2892 http://www.photo-facts.com/WP/archives/2892#comments Wed, 09 Sep 2009 08:00:00 +0000 admin http://www.photo-facts.com/WP/archives/2892 The Shadow/Highlight dialog is a Photoshop tool which can be used to lighten shadows, darken highlights or both, while leaving the rest of the image unaltered. You can also use this dialog to adjust the image contrast without ‘clipping’ the shadows [...]]]> http://www.photo-facts.com/WP/archives/2892/feed 0 http://www.photo-facts.com/WP/archives/2886 http://www.photo-facts.com/WP/archives/2886#comments Thu, 21 May 2009 14:14:00 +0000 admin http://www.photo-facts.com/WP/archives/2886 This is an image defect produced in areas where sensors are grossly overexposed. It’s caused by overloaded photosites ‘leaking’ charge into neighbouring pixels. Sensor blooming is worse with some types of sensor than other, but especially physically small sensors (like [...]]]> http://www.photo-facts.com/WP/archives/2886/feed 0 http://www.photo-facts.com/WP/archives/2883 http://www.photo-facts.com/WP/archives/2883#comments Thu, 21 May 2009 14:12:00 +0000 admin http://www.photo-facts.com/WP/archives/2883 The sensor in a digital camera is equivalent to the film in a traditional camera. Where the film is processed at a lab to produce the image, digital cameras process the image data produced by the sensor and save the [...]]]> http://www.photo-facts.com/WP/archives/2883/feed 0 http://www.photo-facts.com/WP/archives/2714 http://www.photo-facts.com/WP/archives/2714#comments Wed, 20 May 2009 21:18:00 +0000 admin http://www.photo-facts.com/WP/archives/2714 http://www.photo-facts.com/WP/archives/2714/feed 0 http://www.photo-facts.com/WP/archives/2702 http://www.photo-facts.com/WP/archives/2702#comments Wed, 20 May 2009 21:12:00 +0000 admin http://www.photo-facts.com/WP/archives/2702 This is a filter which is clear at the bottom but darker at the top with a smooth (graduated) blend in the middle. It’s primarily used to darken skies in landscape shots – many outdoor shots are spoiled because the [...]]]> http://www.photo-facts.com/WP/archives/2702/feed 0