Knowing ISO

ISO in digital photography, for me, better understood as the ability to capture light sensor technology. The higher the ISO value, the greater the light that can be captured by the sensors. However, they are missing is the emergence of noise with increasing ISO value that gives a chance. This noise looks like a freckle - a small granular spots which spread all the photos. If the image in zoom to 100% will be obvious noise. Apart from causing noise, the ISO value addition can also lead to reduced quality image is produced for example: color does not appear so, detail is lost and so on.

The value of ISO on the camera in general is 100,200,400,800,1600,3200. Professional DSLR camera, NIKON D3, even able to achieve the ISO until 6400.12800 and 25 600 with a very low noise. As technological developments do not be surprised if the next few years will be better digital sensor, capable of supporting high ISO but with minimal noise.

The use of ISO

Generally, the recommended ISO setting is a small ISO value. Resultant noise is smaller, so the result is better pictures especially if berenacana for in-print in large sizes. Also suitable for shooting landscapes / scenery where the noise to a minimum desideratum. Fuss when photographing landscapes usually at times where it is less light: sunrise, sunset or night. Inevitably, fans of these types of photos should be prepared tripod or the like to be able to use a long shutter speed.

ISO great value normally used to less light conditions (night time or indoor), where setting the Aperture and Shutter Speed is mentog. In these conditions, the ISO value can raise up us who get the ideal shutter speed. Why not use a tripod just like photographing scenery? well, if for example you want to photograph objects still frozen over hell could have In recent sec .. but my son could be so euy ga. Photo below is a sample using the highest ISO on my Nikon D50 camera such as ISO 1600. You can see at the bottom of the photo, religion section looks dark granules noise. But I must take this photo because a good moment. Light crude gained from afternoon sunlight through. To get enough shutter speed to prevent blur / shake, with a fairly wide DOF (F5.0), I must increase the ISO up to 1600.

== Bad Noise?

Jugaa Ga .. I've even seen a picture of Audi (singer) in a photo magazine (forgot to mention) presented a full page with high ISO alias lot of noise. According to the photographer to come up with the noise moodnya yangg Audi ... glum? : P

Personally, I, the origin is not in print in big size is very timid ga using a high ISO up to 1600-even. Lha wong make the most sense is placed on this blog: p .. standard web size, going ga-noise its very subtle. If the print is also ga gede-gede very aka postcard size. The important purpose of a picture can already digested by the reader as well. Another story because of the noise if the object so not clear as who I have ever experienced when forced to use the camera's high ISO Prosumer FZ7. Why buy a DSLR aja deh .. completely different in his power ISO. Photos of the night, ga indoor photos can be a problem again ..

Auto ISO

Is a feature on the Nikon D50 which I love. Do not know yet if any of the other camera brands. What is clear is the automation function selection by the camera ISO value to get a minimum shutter speed that we specify. On my camera, there In recent minimum value that can be selected that is 1, 1 / 15, 1 / 30, 1 / 60 and 1/125sec. Suppose we select a value 1 / 125 sec. Cameras will be to adjust the ISO value as much as possible so that the aperture value of existing options we can obtain the value 1 / 125 sec. In the normal lens (eg 50mm) 1 / 125 sec is high enough value to prevent the possibility of blur / shake. ISO-value would be more specific, is not limited to ISO values I mentioned above earlier (200,400,800 etc.). It could be eg the camera set the ISO value to 350 etc etc..

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