Actually I was experimenting with a new lens, 50mm f/1.7 AF.
Lighting was total crap in my computer room so I assume that is where the WB issues are coming from....
With focus issues, is that more from low light/ simi moving target or camera shake and low focal point? Should I tripod when I get such a shallow focal point?
I don't know what you mean by low focal point (unless you mean close). If you indeed mean close, that might have something to do with it. I would suggest shooting this at maybe an f/4 or f/5.6. It will put more of your pup in focus instead of having both his nose and eyes out.
But some of the issue very well could be blur. If your subject is moving, and you took the shot at 1/15 of a second, you will get 1/15 of a second worth of blur, which can be just enough to make the photo seem fuzzy. Add this in with what shake your hand might have at 1/15 (even a millimeter of shake is enough), and your photos look soft.
However, aperture doesn't affect how much camera shake you have. What will, though, is the corresponding shutter speed. So if these are close-ups, you'll need to probably at least shoot around 1/30 or even better 1/60 to minimize any blur. If you have IS (I'm guessing you have a Pentax or Sony?), you can get away with a lower shutter speed, but ONLY if your subject is stationary. You're the only one that stabilized, your subject is not
As far as the white balances, this is a not a problem exclusive to you by any means. If you look on
www.dpreview.com they do white balance tests, and almost EVERY SINGLE digital SLR gives a horribly yellow overcast on Auto WB settingw while under tungsten lights. I don't know why, but I do know you'll be much better off switching to the actual incandescant setting, or even putting in a manual color temperature (if your camera supports this).
I hope I answered some of your questions. I'm a beginner myself, so I understand how frustrating it can be to know there's something not clicking and have no clue what it is. But hopefully the nice people around here can help you (and me) in figuring out our issues.
P.S. If you want an idea of what your depth of field will be before taking the shot (and you don't have a "depth of field preview" button), try this website:
Online Depth of Field Calculator