what did you learn today?

SO today, for classes, i had "digital", and then following that, i had a class just on lighting...imagine, an entire semester on "lighting". it's actually a lot sweeter than it sounds. Anyways this is what i learned today.
I'll start with my digital class this morning.
Reasons for digital imaging? immediate results, easily manipulated, easily transmitted.
one mega pixel= 1 million pixels...thats a lot
the only real problem they have had with digital cameras so far is that digi cameras have a sensor in them to replace the film that a regular camera has...SO peoples pictures have been coming out effed because when you change the lense on your digi if you dont baby it, because of static dust particles cling to the sensor inside your camera causing little annoying black dots on your prints. what a piss off.
if you FOR EXAMPLE worked for say a paper and wanted to get a picture of a class you would use a wideangle lense to make sure you get everyone in the shot.
If you want to keep the quality of photos on your computer DO NOT save them as a jpeg because everytime you resave it or want to edit it, it's quality will become less and less. tiff files suck too because they're huge and take up so much space on your computer. SO save it as a raw file...if you have a nikon=ref.
kodak= des.
and olympus/canon=cr2.
there is an amazing photo editor program called adobe light room. AMAZING!!! and it's free...right now anyways. at the end of february it will be expired and they will be selling it.....
Now for some "lighting" info
diffuse light is very little or no shadow...or flat
specular light is like a pinpoint light source.
you would use diffuse light if you were taking like a baby portrait....so the lighting makes the subject look gentle, soft, pure, good.....goodness
specular would be used for more mysterious, dramatic, scary, drastic, evil subjects.
different directions of light.....
front lighting (directly in front) it doesnt really show depth or texture , its very bright, good colour, and kinda boring.
butterfly lighting....for glamour shots.
the light is coming from the top of the subject at a 45 degree angle creating a shadow under the nose that looks like a little butterfly.
side lighting...
from the side on a 90 degree angle, creates dramatic shadow, depth and texture, and a high contrast.
back lighting..directly behind the head creates a ring of light around the subjects head.
rembrandt lighting is 45 degrees to the side and 45 degrees above the subjects head creating an upside-down triangular shape on the shadowed side of the face....its crazy i saw it.
top light just highlights the hair and isnt that great at all.
monster light is like when you stick a flashlight under your chin.
That's all i can really remember right now.
I'm in debt. that sucks.