Hi, Set WB to Auto and leave it there for a while. It can be changed in post processing if needed. Histograms show the relative number of pixels that are dark (left side) to light (right side). Too many stacked up on either end may suggest lost detail. A clump in the middle spreading to the left may indicate under exposure. JPEGs are processed in the camera and I used them for a couple of months to get used to the camera. They are fine for most exposures printed as "snaps." They do lack detail and are a lossy. RAW allows for more adjustment, including (for some software) resetting some in camera adjustments (like exposure) and has more detail. Once I switched to RAW and had reasonable post processing software, I haven't shot a JPEG since. I haven't seen a D300 book/CD; the one I have for my D200 by Thom Hogan got me off dead center and taking reasonable pictures. Have fun, //Del
The best thing you could do at this point is get a basic digital SLR photography book and read it about 5 times. Really dig into what digital images are and how they are created. We use a lot of the same terminology in the digital world as we did (or do, as the case may be) in the film world, but in actuality most of those terms do not directly translate. For example...digital images are captured simply as information and in reality are black and white if you look at each channel of the RGB information individualy. Then software interpolates that information and creates the color... This is just one example of the differences between film capture and digital.
What I am getting at is that the digital photograph is a completely different animal than the film image, and the more you understand about how these images are created the more control you will have over your craft.
>This is my first foray into the digital world. Intimidating >like hell, but quite an adventure. I need to find out more >information about the proper use of WB, and Histograms. > >Also the shooting modes. I've noticed that JPEG Fine (large) >gives me great shots. What is RAW used for? >
Welcome to the family and I am sure you are going to enjoy this new toy like me. Do read up but the only way to learn is to shoot. Too much theory will make you confused. After reading some basic, try them out and that is how you will remember how to use what you learned.
Also, it would be well worth your time and money to attend a Nikonians workshop on "Mastering the D300/D300s-In Depth." The Nikonian workshops are excellent. (click workshops at the top of the computer screen page.)
I was in the same boat when I switched from shooting film for forty years to a digital D300. Lots to learn, and challenging, but fun! Good luck to you.
Let me add this additional suggestion: Fill out your user profile and equipment. This information aids the more experienced Nikonians in offering advice to you.