You everyone must have come across or even clicked pictures in which everything seems to be falling out of the frame. This happens due to slanting shore lines and slanting horizon lines. If you see the picture below, then you will notice that it is one of those cases. Everything in the frame, from the mountains to the sea, seems to be falling out of the frame. It appears as if the earth has tilted even further on its axis. But I am sure that wasn’t the case when the photographer saw the frame from his naked eye. This is a sheer case of an imbalanced camera level. It is therefore necessary to get a proper camera balance if you wish to get the right picture.
The first way to get the right balance is by using a tripod. Most photographers often find it too cumbersome to carry tripods everywhere and then set them, although some, like the Joby Gorillapod original clamp tripod, are very compact and manageable. Nevertheless, even many of the most experienced of photographers are too lazy to use a tripod. But if you are an amateur then it is necessary for you to use a tripod since your hand is not as steady as the experienced ones.
The second thing that you need to do after setting a tripod is to balance the bubble properly. Every tripod has a bubble balance which if done correctly helps you level the camera according to the topography on which you are shooting. A bubble balance helps to keep your horizon lines straight and the shore lines linear.

agree with the tutorial..the horizon is never tilted while taking a photograph. Using a tripod as suggested in the following tutorial is a must.Thank you very much for this tutorial but there is a simple way in photoshop you just have press the ‘R’ key n u get d option of rotating d picture by angle(s)..!