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Showing posts from July, 2016

Camera ISO - Basic things you should know about

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Understanding ISO – A Beginner’s Guide It is challenging to  take good pictures  without a good understanding of how ISO works and what it does. Camera ISO is one of the three pillars of photography (the other two being  Aperture  and  Shutter Speed ) and every photographer should thoroughly understand it, to get the most out of their equipment. Since this article is for beginners in photography, I will try to explain ISO as simple as I can. Before we go any further, you should first understand  how DSLR cameras work . 1) What is ISO? In very basic terms, ISO is the level of sensitivity of your camera to available light. The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your camera. The component within your camera that can change sensitivity is called “image sensor” or simply “sensor”. It is the most important (and most expensive) part of a camera and it is responsible for gathering light and transformin

Usual sensors in a smart phone

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1. Proximity Sensor A proximity sensor is a  sensor  able to detect the presence of nearby objects without any physical  Scansiona il QrCode per vedere il profilo Contact di {name} e clikka per creare il tuo GRATIS  is comprised of an infrared LED and an IR light detector. It is placed near the earpiece of a phone, and for a good reason – when you place the handset up to your ear, the sensor lets the system know that you're most probably in a call and that the screen has to be turned off. The sensor works by shining a beam of invisible to humans infrared light which is reflected from a nearby object and picked up by the IR detector. 2. Light sensor A phone's light sensor is what measures how bright the ambient light is. The phone's software uses this data to adjust the display's brightness automatically – when ambient light is plentiful, the screen's brightness is pumped up, and when it is dark, the display is dimmed down. An interesting fact is that high-e