The eye of the camera

The lens is the eye of the camera, and it's a very complex instrument. Different lenses can provide many different features,
 so it's important to know the differences between them. 

Certain types of lenses are better for certain situations

Standard lens

Zoom lens

Wide angle lens

Telephoto lens

Macro lens

Fish-eye lens

Feel The Beauty

Depth of Feild

 Increasing the depth of field increases the sharpness of an image. We can use smaller apertures for increasing the depth of field