I want to know about SLR cameras

1. If only automatic mode is used, there is little difference between SLR and card machine. This is similar to buying an electric car with no electricity and only pedals. Moreover, the SLR is bulky and heavy, and there is no continuous enthusiasm for photography. It won't be long before you feel that traveling with it is a burden.

2. The biggest difference, the first is that the SLR image quality is better, because the photosensitive element area is much larger; Second, better mobility, such as faster shutter response time, faster storage speed and stronger continuous shooting ability; Third, it is more scalable, and the lens can be changed to meet different shooting needs.

3. Just buy a set of machines at an entry-level price of 5000. For example, Canon's 550D and 600D, Nikon's D3000 and D5000. If you think the cheapest one is enough, you can also consider Canon's 1000D or Sony's 290390. If you consider the portability of travel, you can pay the bill. Olympus single battery is only about 3000, and the picture quality is better than that of the card machine. The body is small and portable, and the lens can be changed.

If you only use automatic transmission, and it is entry-level, there is nothing to consider, because it is almost the same to use either one. Canon and Nikon are the best SLR brands, and their lenses are also the most abundant, so if there is no strong brand tendency, choose one of them. Think about it, compare the prices, and then consider which lens to buy. If you travel frequently, you can consider a 18-200 pan/tilt, which has all the commonly used focal planes. If there are no special requirements, a 18-55 header is enough.