Beginners, introductory SLR camera purchase lens problem.

The landlord likes telephoto and wants to shoot landscapes and tourist commemorative portraits I strongly recommend 18 200 (one shot to go around the world) 18 55 you said wide angle has but there is no telephoto 55 250 telephoto has but no wide angle to shoot the landscape 17 85 is not a telephoto If you sell 18 55 and 55 250 you have to carry two lenses When you see a landscape, you think it's so beautiful, you shoot it After shooting, suddenly you see a small house in the distance, which is also beautiful, and you want to shoot it, but your lens can only go as far as 55 So you can only change the lens of 55 250 and walk a little longer and see a lake that is very empty You are 55 250 at this time and you can't shoot a wide angle You must be very helpless to take out the lens of 18 55 If you go with a tour group, will a group of people still wait for you to change the lens alone Then change the lens in the field The CCD inside the camera is easy to get into the dust, and then it will be gray When the time comes, it will be gray If you are 18 200, then you can shoot at a wide angle at a distance, you don't need to change the lens, you won't get into the dust, you won't waste time I won't accidentally drop the lens on the ground when I change the lens (this thing is not nothing, my friend is) So I highly recommend 18 200 The landlord said 18 200 is very expensive, but you think about it, you don't have to buy anything else (for the tourism you said, the scenery is commemorative, and the others are not considered) If you still think it is expensive, I recommend that you buy Sigma 18 200 I have used Sigma 18 200 before, and the image stabilization is good, you can go to the hummingbird forum to learn about it, **It is more than 2000 yuan, which is very affordable The lens of the original factory is not necessarily better than that of the deputy factory, and in some extreme cases, the lens performance of the auxiliary factory is very good.

I don't think it's necessary to buy 500d. Either buy a 450d or buy an intermediate one. 500d is also elementary, and now intermediate is not much different from beginner**.

If the requirements for upgrading are not very high in the future, I think Pentax K20D is more okay. Or go straight to the Canon 40D. Just the matching head.

Because it's a newbie. Make good use of the pullover, and it's best to think about buying other heads. Hope it helps!

If you want to learn these, you must first be interested, and then you have to actually shoot, and you will naturally learn in the process of shooting in combination with the actual situation, and then slowly learn in depth according to the process of shooting, and you will improve unconsciously.

It is recommended to start with the "New York School of Photography Tutorial" to learn the basic theoretical knowledge of photography.

Do you have an e-mail address, I will send you a copy of the "New York Institute of Photography Photography Textbook", which contains the structure of the lens and other photography knowledge.

It has been sent to your mailbox, pay attention to check, the sending email is.

200 represents the focal length range of the lens (to put it bluntly, the zoom distance), f represents the aperture coefficient, and the larger the aperture value, the more the aperture is calibrated.

2. The aperture can be adjusted automatically or manually. Generally, SLRs will have aperture priority and manual gears, both of which can adjust the aperture.

3. If it is an entry-level level, 450d or 550d is sufficient.

If I have a detailed information on a single shot, I also found it on the Internet, it seems to be here.

I can pass it on to you if you want.

When I go to photography forums, I often check out new photography.

If you take a look at the lens products on Canon's official website, you can also learn about some classifications, characteristics, and so on.