Photography Medium ⚡ 10 Questions ⏱️ ~7 Mins +100 XP

Light, Lenses & Exposure

Ten questions on how a photograph is made, each explaining the physical trade-off behind the setting.

10
Questions
~7m
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Medium
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+100
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About this topic

Camera settings intimidate people mainly because they are taught as numbers rather than as trade-offs. This quiz covers aperture, shutter speed and sensitivity, and what each one gains and costs, along with lenses, composition and the history of the medium. It runs from the earliest surviving photograph to digital sensors. The explanations give cause and effect throughout, which is the fastest way to move off automatic mode.

Questions & answers

Light, Lenses & Exposure: all 10 questions and answers

Every question in this quiz is listed below with its correct answer and the reasoning behind it. Play first if you would rather not see the answers — or read through as a study sheet.

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  1. 1Aperture primarily controls which two things?

    • A Shutter timing and colour
    • B Light entering the lens and depth of field Correct
    • C Sensor size and contrast
    • D Focal length and zoom

    Answer: B. Light entering the lens and depth of field

    Why: A wider aperture admits more light but reduces the depth in focus. That is why portraits with blurred backgrounds are shot wide open.

  2. 2In photography, ISO refers to what?

    • A The lens diameter
    • B The shutter mechanism
    • C The sensor or film sensitivity to light Correct
    • D The image file format

    Answer: C. The sensor or film sensitivity to light

    Why: Raising ISO brightens the image in low light but introduces more noise. It is generally the last of the three exposure controls to adjust.

  3. 3Shutter speed most directly affects what?

    • A The colour temperature
    • B The file size
    • C How motion appears in the image Correct
    • D The lens focal length

    Answer: C. How motion appears in the image

    Why: A fast shutter freezes motion while a slow one lets it blur. It also controls how long light reaches the sensor, so it is part of exposure too.

  4. 4What does SLR stand for?

    • A Selective long range
    • B Standard light receiver
    • C Single-lens reflex Correct
    • D Single light refraction

    Answer: C. Single-lens reflex

    Why: A mirror reflects the image from the taking lens into the viewfinder, then flips up to expose. Mirrorless cameras remove that mechanism entirely.

  5. 5The rule of thirds is a guideline concerning what?

    • A Lens choice
    • B Exposure
    • C Colour balance
    • D Composition Correct

    Answer: D. Composition

    Why: It suggests placing key elements along lines dividing the frame in thirds. It is a starting convention rather than a rule worth obeying always.

  6. 6A darkroom was traditionally used for what?

    • A Storing cameras
    • B Testing lenses
    • C Developing and printing film Correct
    • D Mixing pigments

    Answer: C. Developing and printing film

    Why: Light-sensitive materials were processed there under safelight. Digital capture removed the need for it in most workflows.

  7. 7Who produced what is generally regarded as the earliest surviving photograph?

    • A Nicephore Niepce Correct
    • B Louis Daguerre
    • C George Eastman
    • D William Fox Talbot

    Answer: A. Nicephore Niepce

    Why: Niepce made a view from his window around 1826 or 1827 requiring hours of exposure. Daguerre, his later partner, developed a far more practical process.

  8. 8Which company made photography accessible to a mass market with simple roll-film cameras?

    • A Canon
    • B Nikon
    • C Leica
    • D Kodak Correct

    Answer: D. Kodak

    Why: George Eastman's Kodak launched in 1888 with the slogan about pressing the button while the company did the rest. Customers returned the whole camera for processing.

  9. 9A wide-angle lens is characterised by what?

    • A A fixed aperture
    • B A long focal length
    • C A built-in filter
    • D A short focal length and broad field of view Correct

    Answer: D. A short focal length and broad field of view

    Why: Short focal lengths capture more of the scene and exaggerate the sense of depth. Telephoto lenses do the opposite, compressing distances.

  10. 10In digital cameras, what replaced film as the light-recording surface?

    • A A prism
    • B A mirror
    • C A glass plate
    • D An electronic sensor Correct

    Answer: D. An electronic sensor

    Why: CCD and later CMOS sensors convert light into electrical signals. The underlying optics were largely unchanged by the switch.

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