Question 1

The two types of flash used by photographers are:&#10;A) Observable and strobe&#10;B) Photoflash and strobe&#10;C) Photoflash and f-stop&#10;D) f-stop and observable

Accepted Answer

The two types of flash used by photographers are photoflash, which is a burst of bright light that lasts for a very short duration, and strobe, which is a continuous burst of flashes that are timed to sync with a camera's shutter speed. Therefore, option B is the correct answer.

Question 2

Off camera flash techniques refer to:&#10;A) Adding the light through a secondary program such as Photoshop after the picture is taken&#10;B) Directing the flash away from the object being photographed so the flash bounces off and causes additional light&#10;C) Directing the flash directly at the object so as to reduce glare&#10;D) The failure to use flash properly

Accepted Answer

Off camera flash techniques involve using a flash that is not attached to the camera and is directed away from the object being photographed in order to create a more natural and dynamic lighting effect. This can be achieved through the use of reflectors, diffusers, or bounce cards to manipulate the direction and intensity of the flash.

Question 3

The use of multiple flash units to reduce glare or create more even lighting is accomplished with the:&#10;A) Leasing unit&#10;B) String unit&#10;C) Advertent unit&#10;D) Slave unit

Accepted Answer

The use of multiple flash units to reduce glare or create more even lighting is accomplished with the slave unit. A slave unit is a device that allows one flash to trigger another flash remotely, allowing multiple flashes to be synchronized to capture an image with more evenly distributed light or to reduce glare by balancing light sources. None of the other options listed are relevant to this process.

Question 4

_________________ with light is a film camera technique that simulates multiple flash, but requires only one flash unit.&#10;A) Painting&#10;B) Zoning&#10;C) Specification&#10;D) Spotting

Accepted Answer

Painting with light involves using a single flash unit to selectively light different parts of the subject or scene with multiple flashes. This creates the illusion of multiple light sources and a more complex lighting setup, without actually requiring multiple flash units.

Question 5

Because the light created by a flash moves away from the flash source it appears to disappear; for instance, the light from a single flash illuminates a subject 20 feet away slightly, 10 feet adequately, and 5 feet too brightly. This is known as:

A) Cave theory
B) Concentric zone theory
C) Photo-Burst law
D) Inverse square law

Accepted Answer

The described phenomenon is a result of the Inverse Square Law, which states that light intensity decreases as the distance from the source increases. Specifically, the intensity of the light is inversely proportional to the square of the distance from the source. Therefore, the subject closer to the flash appears brighter, while the subject farther away is less illuminated.

Question 6

The use of a material, such as a handkerchief or cheesecloth, to reduce the intensity of light and therefore require increased exposure is a process known as:&#10;A) Displacement&#10;B) Dislocation&#10;C) Dispersion&#10;D) Diffusion

Accepted Answer

The process of using a material such as a handkerchief or cheesecloth to reduce the intensity of light and require increased exposure is known as diffusion. Diffusion is the scattering of light in different directions. The other choices do not accurately describe this process.

Question 7

Subjects with reflective physical properties such as glass, glossy painted surfaces, or finished wood may exhibit specular reflections when photographed known as:&#10;A) Silver screens&#10;B) Sheen spots&#10;C) Gleam glows&#10;D) Hot spots

Accepted Answer

Hot spots are areas of specular reflection that appear as bright areas or spots in photographs of reflective surfaces.

Question 8

The primary consideration when figuring exposure for flash is the distance of the subject from the flash.

Accepted Answer

The distance between the subject and flash affects the amount of light that reaches the subject, which in turn affects the exposure. The closer the subject is to the flash, the brighter the image will be and vice versa.

Question 9

In painting with light, if the individual holding the strobe does not remain outside of the field of view of the camera, he or she will appear as a ghost-type image in the photograph.

Accepted Answer

This is because the camera captures the movement of the person holding the strobe, which creates a ghost-like image in the final photograph.

Question 10

Guide numbers provided by manufacturers of flash units are often greatly inflated which mandates the units be tested carefully by the photographer before professional use.

Accepted Answer

Guide numbers provided by manufacturers may not always reflect real-world conditions and accuracy, so it's important for photographers to test their flash units before using them in professional situations.

Question 11

While penlight batteries are the power source of choice for flash units for photography, the expensive nature of these batteries makes them nearly impossible for police departments to buy in large quantities.

Accepted Answer

The answer of While penlight batteries are the power source...

Question 12

Electronic strobe flashes for camera were invented by Thomas Edison in 1803 in Harrisburg, Pennsylvania.

Accepted Answer

The answer of Electronic strobe flashes for camera were invented...

Deck 6: Flash Photography