Question 1

There are three basic types of printers commonly used to produce digital photographs; laser, ink jet, and:

Accepted Answer

Dye-sublimation printers are the best choice for producing high-quality photographic prints as they are capable of producing continuous-tone images with a high level of color accuracy and sharpness. Laser printers are not ideal for printing photographs as they tend to produce pixelated images with limited color range. Inkjet printers can produce good quality prints, but they are not as durable as dye-sublimation prints and can be susceptible to fading or smudging over time. Standard-sublimation printers do not exist; the term may refer to dye-sublimation printing. Electrostatic angle is not a term relevant to printing technology.

Question 2

Printer resolution is measured in:

Accepted Answer

Printer resolution is measured in dots per inch (dpi). This refers to the number of ink dots that the printer can put on a square inch of paper to create an image. The higher the dpi, the better the print quality.

Question 3

Which of the following contains information about a photograph, such as file name, date and time, the camera that produced the image, and size and file format.

Accepted Answer

Metadata is information about a photograph that includes details such as file name, date and time, the camera that produced the image, and size and file format. The other options (A, C, D) do not relate to photograph details.

Question 4

Color-depth, which describes the number of data points that are used to define the color of a single pixel, is also called:

Accepted Answer

Color-depth is also called bit-depth as it refers to the number of bits used to represent the color of a pixel. The higher the bit-depth, the more color variations can be represented, leading to a more accurate and smooth color reproduction. The other options, Bayer layer, Angle-depth, and Ray range, do not relate to color-depth.

Question 5

Histograms are graphical representations of the tonal range in an image.

Accepted Answer

Histograms display the distribution of tones in an image, with the horizontal axis representing the tonal range and the vertical axis representing the number of pixels in that tonal range.

Question 6

Laser printers often perform poorly when reproducing color photographs.

Accepted Answer

Laser printers are typically better at producing sharp text and graphics, but can struggle with reproducing the subtleties of color in photographs. This is because laser printers use toner, which is a dry powder that is fused onto the paper using heat, whereas inkjet printers use liquid ink that can produce more nuanced color variations. However, some high-end laser printers are specifically designed for photo printing and can produce excellent results.

Question 7

There has been much concern in the past over the manipulation of digital images due to the potential for doctoring of photos.

Accepted Answer

This statement is true as digital images can be easily manipulated using software, leading to questions about their authenticity and potential for misuse in various fields including journalism, advertising, and even legal evidence.

Question 8

A major drawback of digital cameras is found in the fact that low end digital cameras cannot produce acceptable images on a computer or television screen.

Accepted Answer

Low end digital cameras may have lower image quality compared to higher end models, but they can still produce images that are acceptable for viewing on electronic screens.

Question 9

Scanners have a singular row of light-sensitive sensors mounted on a bar and are rated based on resolution, color depth, and dynamic range.

Accepted Answer

Scanners typically have a row of light-sensitive sensors called a CCD (Charge-Coupled Device) or CIS (Contact Image Sensor) array. They are commonly rated based on their resolution, color depth, and dynamic range.

Quiz 12: The Digital Darkroom