Does it cost a lot to learn photography and buy a long lens after buying a camera?

Playing photography really burns money. Because photographic equipment is very expensive.

However, if you consume rationally, you won't spend too much money ... after choosing the equipment that suits you, you can use it for many years. Once the cost is shared, it is not very expensive.

As for the telephoto lens ... it should mean telephoto lens ... telephoto lens is necessary. Other lenses are irreplaceable!