My first work - photographs of selected subjects on campus

Session 1 - Nikon D7000

I was trying to learn the basic techniques of photography: focus, gaining correct exposure, depth of field, aperture and shutter speed. It was for me the first time I was using single lens reflex camera. It was for me really hard to catch up the proper exposure. I was all the time having some problems. However, for the first time I finally felt that I am taking photos. It is difficult to choose the proper seting but at the same time it gaves much more satisfaction.
This are some examples of photos which I took. I was messing around with aperature and deph of field.

Here are examples when I was trying to get the proper deph of field.

This next pictures shows that my exposure should be mu bigger because the sky is not visible. Apperture should be bigger to get less light into the lens.