In this problem, you get state the rectify protraction the imaging roll should be from the lens control an design at a sure protraction to be in nucleus. Assume the meager lens standard discussed in disquisition control a camera with a focal protraction of 35mm. An design in the spectacle get be in nucleus when integral the rays from the design that ignoring through the lens incline at the similar sharp-end on the imaging roll.
What should be the protraction from the lens to the imaging roll control an design that is :
a)1m from the camera?
b) 100m from the camera?
The controlmula control meager lense
1/p + 1/q = 1/f
f – focal protraction of the lense
p – protraction betwixt the lense and the design
q – protraction betwixt the lense and the metaphor.
a) p = 1m = 1000 mm f= 35 mm
q = 1/(1/f-1/p) = (1/(1/35 – 1/1000))
= (1/(0.028 – 0.001)
= 37.03 mm
b) p = 100m = 100000 mm f= 35 mm
q = 1/(1/f-1/p) = (1/(1/35 – 1/100000))
= (1/(0.02857 – 0.00001)
= 35.01 mm