TEASER - 07
CLOSING-IN V/S ZOOMING-IN
Zooming-in is defined here as a simulation of an act of moving closer to an object-in-view with the help of a magnifier such as telescope or binoculars. Closing-in is defined here as an act of physically moving closer to an object-in-view.
One aspect which is common in both processes is that things get magnified and look bigger to the viewer. The process of magnification is identical in both cases?
(a) True
(b) Falls
THE EXPLANATION:
Zooming-in
Zooming-in is a simulation of an act of movement toward or away from an object and not the actual act of movement. This is performed with the help of a magnifier such as zoom lens. In motion picture or television, zooming-in is a process of changing rapidly from a long shot to a close-up while maintaining the subject or scene in focus or vice-versa.
The observer and object do not move physically towards or away and remain fixed at their places and the relationship with regard to angle and depth between observer and object remain unchanged. The process of zooming-in can be equated simply to the process of enlargement of a 2D picture where only X and Y (length and width) is stretched and 3rd axis Z (depth) does not play any role.
Geometrically following things happen in zooming-in process;
• All objects seen within view-field progressively appear bigger.
• All objects, near or farther within view-field magnify at same rate, hence the viewer’s relation with object, with respect to depth and angle does not change while zooming-in or zooming-out. The process can be likened to enlargement or stretching of a photograph on a paper (2D).
IMAGE OF AN OBJECT SEEN BY NAKED EYE
ZOOMIN-IN: IMAGE OF AN OBJECT SEEN WITH THE HELP OF A MAGNIFIER (OBJECT IS ENLARGED)
Closing-in:
The closing-in process involves both viewer and object and they come closer progressively to each other and eventually come into physical contact.
In real world the three dimensional (3D) objects have three axis, X, Y and Z (length, width and depth) and each point on an object is at a different depth and at different angle at a given time and space with respect to viewer. When viewer moves toward an object, the depth and angle of object keep changing and become pronounced at close range.
The image on our retina forms in 2D format (length & width) however as viewer moves toward an object, 3rd dimension (Z-axis) comes into play as a result of movement of the viewer.
The image of each objects seen within the view-field magnify at different rate depending on its depth and angularity. The nearer one magnifies at much higher rate than the farther one.
Geometrically following things happen in closing-in process:
• All objects within a view-field progressively appear bigger.
• All objects, seen within view-field magnify at different rate.
• The nearer objects magnify at much higher rate then the farther objects, hence the viewer’s relation with object, with respect to depth and angle constantly change while closing- in or closing-out.
IMAGE OF AN OBJECT SEEN BY NAKED EYE
CLOSING-IN: IMAGE OF AN OBJECT SEEN AT CLOSE RANGE BY NAKED EYE (OBJECT IS ENLARGED)
Conclusion:
In both processes objects within view-field magnify and appear progressively bigger, however similarity ends here. The major difference between two, with regard to magnification, is that in case of closing-in nearer object magnify at much higher rate than the farther one where as in case of zooming-in all objects within view- field magnify at same rate.
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