Question 5 Identify the correct focal length associated to each of the following possible side effect (perverse effect). Distorsion (zig-zag) of normally straigt perspective lines:

Corner of the photograph darker than the center (vignetting):

Impression that there is less space (on the depth axis) between the ele- ments (compression):

Exagerated perspective :

The illusion that there is water (on the ground) in the background par of the composition when a photo is made by a sunny day :

Question 6 Which lens, between a 50 mm and a 500 mm, offers a larger depth of field?

Question 7 Name the type of lens (and it is also a setting on cameras), make it possible for the photographer to shoot at a very short distance from its subject, allowing to reveal very tiny details otherwise not perceptible

/5

/2

/2

3

Question 8 Referring to the images at the top of the page, write the letter (A, B or C) corresponding to the following aperture factor : f5.6: f2: f22:

Question 9 Referring to the same images, which aperture would offer the greater depth of field? (Write A, B or C).

Question 10 If your aperture is f5.6 and your camera indicates there isnt enough light, what other aperture could you use, for instance?

Question 11 For each of the following type of shutter speed, give an example of speed in fraction of second (e.g. 1/30th). Normal shutter speed: Fast shutter speed: Slow shutter speed :

Question 12 What would happen if you would take the picture of a moving object while using a slow shutter speed?