To understand the term of digital sensors we have to imagine an array of buckets collecting rain water. Digital sensors work the same way buy they consist of an array of pixels collecting photons, the minute energy packets of which light consists. The light sensitive photodiode converts the number of photons collected in each pixel […]
Posts Tagged ‘sensor’
Micro lenses
October 25th, 2010 
Andrei Microlensses are usually placed on top of the color filter array on certain sensors of digital cameras, their principal role being to overcome the limitation of a low fill factor. Microlenses are also used in order to funnel the photons of a larger area into a smaller area of light sensitive photodiode. Microlenses are small […]
AD Converter
January 17th, 2010 Andrei Sensors from your digital camera consists of millions of pixels with photodiodes which convert the energy from the light (actually from the incoming phototns) into an electrical charge. That electrical charge is then converted to a voltage which is amplified to a higher level so that it can be further processed by the ADC (Analog […]
Lesson 15: Rule Of Thirds
November 3rd, 2009 Andrei The rule of thirds is one of the most basic composition guidelines in photography. The rule of thirds makes use of a natural tendency of the human eye to be more strongly drawn towards certain parts of an image. The rule states that an image should be imagined as divided into nine equal parts by […]
Posted in Beginner's Tutorial 
Tags: composition, rule of third, rule of thirds, sensor, the beginning 
3 Comments »Lesson 7: ISO
October 17th, 2009 Andrei Digital cameras have an ISO rating indicating their level of sensitivity to light. The normal setting for most cameras is ISO 100, although some go as low as ISO 50. The sensitivities can be increased to 200, 400, 800, or even 3,200. High-end digital SLRs also allow some intermediary values. When increasing the sensitivity, the […]
