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Mark_Levesque
02-15-2008, 04:38 PM
Ch 3 Lens

Q1) Which of the following statements is untrue?

A) A lens which approximates the impression human vision makes is called a normal lens.
B) A normal lens for a 35mm camera is a 50mm lens
C) All camera formats have the same focal length normal lens
D) A rule of thumb for the focal length of a normal lens is the diagonal measurement of the film or sensor.

Q2) Maximum depth of field at a given aperture is achieved by focusing at

A) infinity
B) the distance of the most relevant foreground object
C) the hyperfocal distance
D) the distance of the most prominent background element

Q3) Which of the following statements is correct

A) Perspective is affected only by the distance of camera to subject
B) a short focal length lens always produces an image with distorted perspective
C) a long focal length lens cannot produce an image with perspective distortion
D) a short focal length lens used at a large subject to camera distance produces a distorted perspective
Cassandra_Sullivan
02-15-2008, 06:31 PM
Q1) C

Q2) C

Q3) A
TerryMiller
02-15-2008, 11:23 PM
1 C

2 A

3 A
Heather_L._Smith
02-16-2008, 12:18 AM
My answers...(ugh)

C) All camera formats have the same focal length normal lens
A) infinity
A) Perspective is affected only by the distance of camera to subject
Andrea_Chapelo
02-16-2008, 12:18 AM
1)c
2)c
3)a
Ellen_Duperret
02-16-2008, 07:31 PM
1. C
2. C
3. A
Cassandra_Sullivan
02-22-2008, 07:46 PM
Hey Mark you never posted answers to these Q's...
KirkDarling
02-22-2008, 09:34 PM
C) All camera formats have the same focal length normal lens is untrue
C) the hyperfocal distance. A lens focused at the hyperfocal distances has depth of field extending from approximately half the hyperfocal distance to infinity, whereas a lens focused at infinity has a depth of field only at infinity.
A) Perspective is affected only by the distance of camera to subject
Mark_Levesque
02-22-2008, 11:47 PM
Oopsie. Kirk is right, as are several of the others. I think what happened was I sent the answers to Ellen, and internally ticked it off as completed. My apologies.
Erin_L._Clark
12-18-2008, 06:49 PM
Still no answers here! :D
Mark_Levesque
12-19-2008, 03:57 PM
1) c
2) c
3) a