Quote:
Originally Posted by SusanH1970
Also, your ISO is very low at 80. A higher ISO, from at least 400 and up will probably improve this. Low ISO is good for bright light, high ISO is good for dim light.
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That isn't 100% correct. A higher ISO is more sensitive to light, so it would take a shorter shutterspeed in dim light, but the higher it is, the more noise you're going to get. If they are using a tripod and remote as you said earlier, you would want to keep the ISO as low as possible, because night shots are often times synonymous with noise, and shutterspeed won't matter because you're not hand-holding the camera.
You really only want to raise your ISO in situations where you can't use a tripod, or subjects are moving.
Or you have a strange affinity with noise...