What the heck?

 www.google.com: color temperature setting

immediately gives you

 http://en.wikipedia.org/wiki/Color_temperature

which answers your question -- see the colour temperature table.  As
for how to handle a completely unknown situation, use the artillery
maxim "always make bold corrections".  Or just do what everyone else
does:  if in doubt, put in on AWB for the JPEG, and collect a raw image
and figure it out later at the computer.

Helo Bruce,

There are many different factors and settings on the D70, including
exposure and white balance adjustments that may affect the final
images. You may want to consider the e-book by Thom Hogan. He reviews
the D70 and all of the settings in great detail but also, in an
understandable way. A link to his site follows:

http://www.bythom.com/d70guide.htm

Regards,
Alan

According to Bruce <brucefalcon@blueyonder.co.uk>:

    Just for the fun of it -- switch on your camera, and take a look
at the display on the top.  Along the bottom line, from left to right,
you should first see a box containing the indicator for the image
quality (RAW, FINE, NORM, BASIC, and "RAW+BASIC" (both indicators are
on).

    Next is a box containing the resolution, L(arge), M(edium) or
S(mall). If you have selected "RAW" in the first area, then the second
will be blank.

    Then -- just to the right of that, starting with the letters
"WB" there are a series of indicators along the bottom line, of which
only one will be turned on.  They are (in order) A (auto white balance),
a light bulb (Tungsten), a horizontal bar with rays (Fluorescent light),
The Sun (a round dot with rays), A lighting bolt (electronic flash), a
cloud (cloudy day), a house casting shade to the right (lighting in
shade), and finally, the letters "PRE".

    These can be selected by holding in the "WB" button to the left
of the image delay, while rotating the thumbwheel.  In some of these, a
number appears to the left of center in the top row, which can be
changed by the index finger wheel.  (If the number is other than zero,
you will see an arrow under the letters "WB" to indicate that you are
not using the default value of the settings.

    In any of these settings other than the 'A' setting, you are
using a fixed white balance, which will be wrong for *most* situations,
and right for only one set of conditions.  Note that the "PRE" setting
lets you take a reading from a 18% gray card for the lighting conditions
in which you find yourself (you'll have to go to the menus to take the
reading), which can give you optimum white balance for unusual or
awkward conditions.

    For many things, just leaving it in the 'A' setting will work
out fairly well.  Verify whether you are there or not.  If not, try that
setting to see how it does in your various conditions.  (And, you can
play with the value of the number once you are in any setting other than
"PRE".

    If you are in any setting other than 'A', and are leaving it
there, that is probably the source of your primary problems.  You may
wish to sometimes select for a specific lighting using the "WB" button
and the thumbwheel and index finger wheel, but for convenience, the "A"
setting may work well enough for you.

    Taking a series of shots which you intend to join with some
photo program's stitching option calls for manually selecting a white
balance, so things don't change (as they will with the "Auto" setting as
you point the camera in various directions.

    Also -- a scene which has a predominance of an uncommon color
can confuse the Auto white balance, so you may wish to use one of the
manual modes there.

    The "PRE" option is the most flexible -- but it requires the
ability to get the gray card in there to be photographed, which may be
awkward or impossible in some situations.

    There are several pages devoted to all of this in the manual,
but I understand that there is a lot of manual out there -- difficult to
absorb it all in one reading.  It helps to re-read it from time to time
as you become more familiar with your camera, as you will pick up extra
things which you can use each time.

    And, of course, as has already been suggested in another
followup, shoot in RAW, and adjust the white balance in the computer
afterwards.

    I hope that this helps,
        DoN.

Lower it.

Jan

If you're recording RAW then you can easilly adjust this during import
to PS.

On the Maxxum 7D, there is a temperature setting (100K increments), so
you can quickly "map" out the temperatures that suit the lighting (I
don't use the AWB or PWB).

If the D70 has such, I suggest you get famillar with simply setting the
temp for the lighting.

generally, incandescent lighting is around 3800K, "raw daylight" is
around 5500K and upwards, open shade is 8000K and upwards.

I find that overcast is best set at 5500K.

Again, at RAW import, play with the color temp and you'll see it right away.

Cheers,
Alan.