What is the level of SLR photography?

Canon's 550D strip lens is generally 18-55. This is a short shot that can't be pulled too far, suitable for taking portraits. This machine is an entry-level SLR machine, with a pan/tilt of 18- 135. The advantage of this head is that it can be pulled very far without changing the length of the lens, but it is necessary to adjust the lens to avoid shaking too much when taking pictures.

Nikon's D3 100 also belongs to the SLR entry machine.

Sony is not recommended. It started too late, more than 70 years later than Canon Nikon.

The essential difference between Canon and Nikon is that Canon's tone is soft, suitable for portrait shooting, while Nikon's tone is sharp, suitable for landscape shooting.

The price of more than 4,000 online stores and physical stores in 550D is different, and the price of Suning Gome Seg is different, ranging from 4,300 to 5,000. 550D will be more expensive if you bring that long price.