tseo said:
What's the best easiest way to light a painting/drawing for photographing with no equipment. I will be shooting with ordinary Nikon Coolpix L4 camera
"...with no equipment"? I'm assuming you mean "how to light a painting/drawing" with only ambient light, so without extra light.
With the camera on tripod, I would try lighting the painting/drawing from the side and a little high, angling down, to get some relief showing (if there is any). Should that relief create too heavy/harsh shadows, you can fill/'open' those shadows with a reflector on the side opposite the light.
But if the painting/drawing is covered by plate glass you'll have a problem with your own mirror image being visible.
To avoid that, you need to avoid
any light falling directly onto your camera (good screen between camera and light), and you need a black backdrop behind the camera.
(A reflection of a (
really) black object should not be visible in the glass).
Also, the shorter the lens, the greater the distortion (cushion or barrel distortion). So I'd use a short telephoto lens – say between 100 and 150mm (35mm film equivalent) to minimize that. Exactly like in portrait photography.
This means the camera needs to be at some
distance from the painting/drawing!
Use Av (aperture priority) at f5.6 or f8.0, and the lowest ISO setting your camera's got.
For a precise White Balance, preset/measure with a grey card (
check this WB wrap-up – click!; 3.5MB PDF file),
and shoot RAW(+JPG) so that you can adjust WB
after the fact, if you want to.