For amateur photographers, how to choose a SLR lens?

In this case, it is recommended to buy portable high-end flagships, such as Canon G 12 and Nikon P7 100. These two machines have portability, high image quality, good control and full manual function. The focal length is very practical, which can not only take good photos, but also learn photography technology, and the price is not high. Canon G 12(28mm wide angle, 5 times light change) is about 3,700 yuan, and Nikon P7 100(28mm wide angle, 7 times light change) is about 3 100 yuan. These two machines can also be used as SLR backup machines when promoting SLR in the future. Single battery has high image quality and portability, and the lens can be replaced. Although it is very popular, the technology is still in the evolution stage, and the prospect of future upgrade is not great. Sony's high-end single battery (A77) has good performance, but the price is similar to that of the mid-range single battery, which costs more than 8,000 yuan. Although the price of entry-level SLR is cheap, its head is around 3500, such as Sony A390, Canon 1 100D, Nikon D3 100, Pentax K-r and so on. Control, body and coke are all "water". If you buy it, you should not consider replacing the advanced lens. A slightly better entry-level SLR, such as Canon 600D, Nikon D5 100, Sony A560, etc. , about 4500-5000, home is enough (with 18-200), but as an amateur, the grade is low. It is better to save some money and go directly to the mid-range SLR, such as Canon 60D and Nikon D7000. At this time, slowly adding some good shots is enough for fans. SLR is a quagmire of burning money to compensate family members. When there are not many tickets, it is better to be cautious.