New answers tagged iso-noise
Cheryll - Firstly, note the link in Mattdm's comment in your question. You'll find a very good discussion of noise and noise sources. After you read that, then you'll know every sensor manufacture wants to minimize noise for its sensors specification, but sometimes those specifications can be counter to that goal. So they have to make trade offs. As ...
You are most probably using Auto ISO. Turn it off, set the ISO to a low level (200), that will handle the pictures being noisy and grainy. You are in aperture priority mode (A), so you will have long shutter, so to avoid your pictures getting blurry, use a tripod. Or use better lighting.
When you say "ISO 200-2000" I assume you are using auto-iso, is that correct? Try using P mode instead of A, and select a 200 or 400 ISO.
Light is made up of particles emitted randomly from a lightsource. If the camera doesn't collect enough light this randomness causes neighboring pixels to be either too light or too dark which is perceived as grain in the image. So to get less grain you need more light. This is achieved by either: opening the shutter for longer, if your subject is ...
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