SLR digital camera, you need to change the lens when shooting, or film SLR camera needs to change the lens! Please be clear about your major,

Changing the lens is to meet different shooting needs, such as changing the telephoto for long distance and changing the macro for flowers and plants. This is one of the advantages of SLR, because it can specialize in special lens resources.

It is not that Nikon Canon's SLR is the best, but that Nikon Canon's SLR penetration rate is relatively high, there are many surrounding resources, and the price is acceptable. Brands like Leica often have hundreds of thousands of cameras, which is a bit like astronomical figures.

Entry-level SLR Canon has 600D 650D Nikon has D3200 D5 100. The general price is above 4000. You can check it online. The price of this thing fluctuates quite quickly.

As for the lens, it depends on what you want to shoot. According to Canon, those who like portraits can focus on it, such as 50 1.8. Just a few hundred dollars, the wide angle you like in the scenery, such as 10-22 17-40 and so on.

I feel that you have no photography foundation at all, so choose a lens with better versatility and hang up. You'll know what lens you need when you get familiar with it later.

Canon's hanging head is better. You can choose 15-85 to disassemble the head. More than 4000 pieces of this head are quickly focused and imaged. Very good for wide angle and large size.

If it is cheaper, you can choose 18- 135. The focal length is very full, and the focusing ratio is a little worse than 15-85.

The cheaper one is 18-55. Imaging is a little worse than the basic horizontal focal length 18- 135.