I just started the first SLR D7000+200, and I have no idea what to shoot. I can recommend several tutorials.

Because I don't know anything, so any tutorial will do.

It is recommended to download the Course of New York Institute of Photography, and only read the first volume.

Because it is a textbook, it is boring, but it is very clear. I saw it, and I made great progress.

Beginners learn the composition first, until they run out. Learn to shoot with one mode (aperture priority mode) and learn to control the depth of field. Practice more, one or two words are not clear.

ISO: It doesn't mean sensitivity, but quantifies sensitivity. For digital cameras, actually, film is not used, but the intensity of incident light is sensed by CCD or CMOS and related electronic circuits. In order to unify the measurement unit with the film used by traditional cameras, the concept of ISO sensitivity is introduced. Similarly, the ISO sensitivity of a digital camera also reflects its exposure speed. When the ISO value increases by 1 times, the photosensitive speed also increases by 1 times. For example, the sensitivity of ISO200 is higher 1 times than ISO 100, ISO400 is higher 1 times than ISO200, 4 times higher than ISO 100, and so on.

Aperture is a device used to control the amount of light entering the photosensitive surface of the fuselage through the lens, usually in the lens. Pay special attention to the smaller the aperture value, the greater the light. F 1.4 >F3.5-5.6 The bigger the lamp, the more valuable it is. The larger the aperture of the lens.