article about compact cameras and ISO

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article about compact cameras and ISO

Ive been saying for ages that Compacts should not do high ISOs. THe sensors are too small to cope and the noise reductions filters they use to combat the problems ruin your photos.

Some are better than others but most are terrible. Ive seen some awful results from fairly recent compacts at just 400iso.. and even they went upto the likes of 1600.

At the end of the day really, you dont want to use noise reduction atall as it degrades the image quality. just get a tripod and use 100iso :)
 
as bushboy, never use more than 100iso unless you don't care about having a picture with more grain than wiltshire.


hi iso's are often offered on low end compacts and that as their lenses are so small (something about f values) and the sensors equally small that not much light falls on them, so in order to get a picture thats not blurred unless your in a sandy bright sunny desert, they use higher iso's than would normally be used.


on the fuji I tend to use 100, as using 64 is OK in good light, but for extended shutter periods can produced excess noise just cos its been open longer.


also, on a digi cam, the iso isn't how reacitve its 'film' would be, instead, just how much the info picked up from the sensors are amplified.
and as most of us should know, amplifying something with a tiny gain like an early cassette, or vinyl for instance, will produce a lot of noise (I say this, but then realise digital tv for example has very little gain:rolleyes: hence its so quiet)
 
There are exceptions obviously but they dont come cheap and are as far as you can get away from the kinda stuff you can pick up in tescos for sub £100.

When was the last time you saw a sigma camera on the shelf? Never :) Mainly because they specialise in lenses but thats not the point:p They are a very large and well known brand in the photographic market, they are not so big on the electronics market that photography has now entered into.
 
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