What is the difference between SLR cameras (15-55mm and 15- 105mm) and 15- 135mm lenses? What kind of scenes are they suitable for? Professionals enter!

There is no standard answer to this question.

That's why professional photographers take a whole set of lenses when they collect landscapes.

Appropriate or not, we can only say whether a shot can meet the requirements when typesetting photos. For example, when the main subject is laid out, it is necessary to change a lens with a longer focal length.

Zoom lens is actually born to reduce the bearing capacity of the lens.

Let's look at the relationship between lens focal length and viewing angle.

The longer the focal length, the smaller the viewing angle. This is actually the main difference between wide angle (small focal length and large viewing angle) and telephoto (large focal length and small viewing angle).

Of the three shots in question, the one with the biggest time change is 15- 135 mm. Regardless of the lens quality, of course, this shot is suitable for more occasions. Moreover, its viewing range covers the first two shots, and another shot must be prepared for the other two shots to achieve the same viewing range.

Therefore, it is recommended to choose 15- 135mm for general non-professional photography when the requirements for image quality are not high.

Photographers standing in the same position must use a wide-angle lens or even a fisheye (180 perspective) in order to gain a wider field of vision. At this time, the focal length of 15mm is very useful.

If you take a long shot, you can only use telephoto to narrow the distance (just because of the angle of view, the subject accounts for a large proportion in the phase, which seems to narrow the distance). Shooting with telephoto is generally called "bird shooting".

Therefore, there is no standard answer to this question, and it can only be said that it is appropriate.