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PerspectiveCorrectionforAnalogandDigitalPhotography
Too
low
Too
wide
8
3
1
0,7
0,5
0,4
0,35
m
oo
5,6
114 16
2,8 22
22
4
8
4
816 16
22
53
2
1,5
1,25
Horizon
Optical axis
Building is true to scale and
completely reproduced
Vertical lines
are parallel
Vertical shift
of 7 mm
es the sharpness, produces just visible bluish violet or reddish brown color
fringes at edges which have been made perpendicular under fairly high en-
largement and gives an image with incorrect proportions (width-to-height
ratio) Since the nal image must, however, be rectangular, the triangular ar-
eas projecting on two sides have to be cut off, which shows how many pix-
els, which are important for high resolution, are lost At the same time, the
surroundings almost always become very small at the narrow side of the
trapezoid or the actual motif is even cropped The optical equalization ac-
tually during the shot with the PC-SUPER-Angulon 28 mm f/28 avoids this