What is focal length? | What is the use of focal length in photography?
Hello guys, Welcome to world of photography. Here you will get knowledge about photography. Let's hop on to he topics. UNDERSTANDING FOCAL LENGTHS If you are/were a science student then you know that right!! but still read the blog you will polish your skills too. So Focal Length in Photography is widely used in optical physics. It's simply the distance between the focus of a mirror/lens and the centre of mirror/lens. You did get it ,. Aaahh!!! Okay see the picture given below See the pictures thoroughly, you will notice that F and f these two letters are the only variables in both the samples. Here 'F' represent focus of lens and 'f' represent focal length. Notice that the 'f' is measured from the optical centre of lens/mirror till the 'F'. Now you would be clear . Ok !! So in the above samples I showed you the concave lens&mirror. But this measurement is also applicable in convex lens and mirror. If you are still confused then I'll ...