What is Tilt Shift Photography ?�
This is the realm of photography that involves tilting the lens with respect to the picture plain and taking photos in that configuration. “Tilt-shift” actually has two movements: the rotation of the lens, called Tilt and movement of the lens parallel to the image plane, the Shift.
Tilt
 On a regular camera, the image plane, lens plane, and object plane are parallel, and objects in sharp focus are all at the same distance from the camera.. When the lens plane is tilted relative to the image plane, the Point …

Lenses are vulnerable to fungal infections. These fungal infections can be dangerous enough to damage the different coatings that the manufacturers give the lenses. The damage is cause usually by acidic secretions that these fungicides make in their normal biological cycle.

Fungal infection in the initial stage is not as serious a problem as it is portrayed in many places. Only in rare cases are lens damaged to irreparable or economically unjustified to be repaired conditions. This is mostly due to sheer negligence from the owners side. There are a lot …

Aspect ratio is the ratio of length to width of a given image. That is the ratio between the two dimensions of an image. The main importance of aspect ratio is that an image of a given aspect ratio will look different on a medium of different aspect ratio. These images should illustrate this :
16:9
4:3
The above two images are of 16:9 and 4:3 aspect ratios respectively, clearly the amount of the scene shown in the two images are different. The second has little more sky than the first and the …

The angle-of-view is how wide an area is seen by a given lens.
Angle-of-view is determined by two factors, the focal length of the lens, and the area of light sensitive material used to capture your image. That means, when your lens becomes longer the angle of view is reducing and the final image will contain lesser area of the image plain. This is what gives the effect of zooming in or enlarging what is being seen to a particular area of interest.

As a general case when the focal length …