I want to buy a SLR to learn photography, which is my personal hobby. I am more optimistic about Nikon D7 100. My colleague gave me a shot 18-55. Can I use it with it?

1: I don't pay much attention to Nikon news, and the tainted door is not very clear. It is safer to do professional cleaning of sensors after sale, especially for students who have no cleaning experience.

2: Absolutely. Nikon 50 1.8D 600 or so, second-hand is cheaper. Can be used in D7 100 autofocus. Buy can not only enjoy the beautiful blur brought by large aperture, but also be used as a portrait head.

3: A little rubbish. The level of D7 100 must be18-105/140, but it is no problem for beginners to use 18-55.

The price of stand-alone 6 100 is not expensive at all, and you can buy genuine licensed products.

There's nothing to be afraid of in the dust. Just pay attention in daily use. For example, when changing lenses, don't be in strong winds, dust and other places. If it is dirty, just wash it after sale. For reference.