Digital Camera questions

1. what happens when the ISO is changed? I know the camera becomes more
or less light sensitive, but what adjustments does the camera make?

2. What is white balance and how should it be set for general use?

--
Es ist nichts schrecklicher als eine tätige Unwissenheit.

Johann Wolfgang von Goethe

Ockham's Razor wrote:
> 1. what happens when the ISO is changed? I know the camera becomes more
> or less light sensitive, but what adjustments does the camera make?

The simply extrapolates the small number of photons
captured, which leads to noise.

>
> 2. What is white balance and how should it be set for general use?
>

Auto.

BugBear

Ockham's Razor wrote:
> 1. what happens when the ISO is changed? I know the camera becomes more
> or less light sensitive, but what adjustments does the camera make?
>
The amplification of the signal as it is read from the
sensor is increased or decreased in proportion to the iSO
setting,
> 2. What is white balance and how should it be set for general use?
>
Just use Auto.