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<blockquote data-quote="alfaholic" data-source="post: 119748" data-attributes="member: 13066">You should know 3 things when it comes to manual use of your camera, Aperture, Shutter Speed, and ISO.Aperture is used to control how much light is coming through the lens to your sensor, also the side effect is blurred background, or sharp just as your subject of focus is. Aperture is measured by f number, and it is the exact oposite of the f number, when you see on your camera f3.5 it means that more light is coming through the lens than on f22.At the same time with f3.5 your background will be more blurred than at f22, so you have full control of your scene and what you want to achieve. Shutter speed gives you control of the time your sensor is exposed, and as a side effect you get blurred moving subjects at slow shutter speeds, and at higher speeds you freeze your subject.ISO is sensitivity of your sensor. For low light conditions higher ISO will give you ability to have faster shutter speeds, but with some noise.The best way to have noiseless photos is to keep your ISO as low as possible, and bring it higher just if your shutter speed is less than 1/30 s, but in some cases you have to ignore his &quot;rule&quot;.Sorry for my broken English, but I think this is a simple answer to your question.</blockquote>

[QUOTE="alfaholic, post: 119748, member: 13066"] You should know 3 things when it comes to manual use of your camera, Aperture, Shutter Speed, and ISO. Aperture is used to control how much light is coming through the lens to your sensor, also the side effect is blurred background, or sharp just as your subject of focus is. Aperture is measured by f number, and it is the exact oposite of the f number, when you see on your camera f3.5 it means that more light is coming through the lens than on f22. At the same time with f3.5 your background will be more blurred than at f22, so you have full control of your scene and what you want to achieve. Shutter speed gives you control of the time your sensor is exposed, and as a side effect you get blurred moving subjects at slow shutter speeds, and at higher speeds you freeze your subject. ISO is sensitivity of your sensor. For low light conditions higher ISO will give you ability to have faster shutter speeds, but with some noise. The best way to have noiseless photos is to keep your ISO as low as possible, and bring it higher just if your shutter speed is less than 1/30 s, but in some cases you have to ignore his "rule". Sorry for my broken English, but I think this is a simple answer to your question. [/QUOTE]

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