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Quiz about Can You Please Focus
Quiz about Can You Please Focus

Can You Please Focus? Trivia Quiz


Do you know much about cameras and photography? I didn't until I wrote this quiz!

A multiple-choice quiz by lones78. Estimated time: 5 mins.
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Author
lones78
Time
5 mins
Type
Multiple Choice
Quiz #
349,108
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
8 / 10
Plays
1877
Awards
Top 10% Quiz
Last 3 plays: jackseleven (8/10), KenX (7/10), spaismunky (9/10).
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Question 1 of 10
1. The word 'photography' comes from the Greek 'photos' and 'graphé', which literally means what? Hint


Question 2 of 10
2. The camera is the object by which we get the image onto some kind of recording media but the image needs to be 'in focus' first (in order for us to get a decent picture!). Which part of the camera is used to focus a subject onto the recording media? Hint


Question 3 of 10
3. The opening of a lens is measured as an 'f-number', but what is this opening called? Hint


Question 4 of 10
4. Another function of cameras is the shutter speed, which can be adjusted on some cameras. If I decreased the shutter speed on my camera (without reducing the aperture), which of the following would I most likely want to take a clear ('correctly' exposed) photo of? Hint


Question 5 of 10
5. Several industries use watermarks on their photos to distinguish their work from others and enforce copyrights. Yet some digital cameras use a digital checksum (similar to the way humans have fingerprints) to ensure that any tampering with the digital file can be identified. In which field would this digital checksum (or digital signature or fingerprint) be the most important? (Hint: you shouldn't need the team from CSI to help you figure out the answer to this one!) Hint


Question 6 of 10
6. Most people would know that it's not a good idea to look directly at the sun - either with the naked eye or through a camera. There is one type of camera though that is used for Solargraphy (among other things) that allows you to look at an image of the sun in a safe way. What type of camera can you use to look at the sun and not risk burning your retinas? Hint


Question 7 of 10
7. In the early 21st century a new kind of camera was introduced which made photography quick, easy and immediately 'share-able' for most people who owned one of these devices. What was this amazing device? Hint


Question 8 of 10
8. There are many different types of photography but one that interests me, personally, is 'aerial photography'. But what is aerial photography? Hint


Question 9 of 10
9. Black-and-white photography falls under the banner of this type of photography, as does any type of photography using a single colour hue. What is this type of photography called? Hint


Question 10 of 10
10. One thing that has fallen by the wayside with the advent of digital cameras is film processing. The photo processing industry was the biggest worldwide user of which non-renewable resource? Hint



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quiz
Quiz Answer Key and Fun Facts
1. The word 'photography' comes from the Greek 'photos' and 'graphé', which literally means what?

Answer: Drawing with light

The Greek 'photos' means 'light' whilst 'graphé' means 'representation by means of lines', or 'drawing'. Putting the two words together, we get the meaning 'drawing with light', a very accurate way of describing the process of how a camera works.
2. The camera is the object by which we get the image onto some kind of recording media but the image needs to be 'in focus' first (in order for us to get a decent picture!). Which part of the camera is used to focus a subject onto the recording media?

Answer: Lens

Adjusting the lens will bring something into focus (or out of focus depending on what you are actually trying to achieve with your photo). Having an object 'in focus' will ensure that the resulting picture is clear and not blurry - unless you don't have a steady hand!
3. The opening of a lens is measured as an 'f-number', but what is this opening called?

Answer: Aperture

The aperture is the opening of the lens which can be adjusted in certain cameras to control the amount of light that is let in through the lens. This affects the depth of field and exposure, with a smaller opening resulting in less light allowed through the lens but allowing for a greater depth.
4. Another function of cameras is the shutter speed, which can be adjusted on some cameras. If I decreased the shutter speed on my camera (without reducing the aperture), which of the following would I most likely want to take a clear ('correctly' exposed) photo of?

Answer: My garden at night time

Decreasing the shutter speed will let light onto the recording media for a longer time. This means that I can take a photo of something in a darker atmosphere, like my garden at night time. If I decreased the shutter speed without reducing the aperture and took a photo on a sunny day, I would likely 'over expose' the recording media and end up with a very bright photo and not much detail - especially if the people I was photographing were moving!
5. Several industries use watermarks on their photos to distinguish their work from others and enforce copyrights. Yet some digital cameras use a digital checksum (similar to the way humans have fingerprints) to ensure that any tampering with the digital file can be identified. In which field would this digital checksum (or digital signature or fingerprint) be the most important? (Hint: you shouldn't need the team from CSI to help you figure out the answer to this one!)

Answer: Forensic photography

With the invention of computers and most people having access to a digital camera, it is possible to make changes to the digital files of photos. This 'fingerprinting' can help scientists to detect whether or not a photo file has been edited, changed or tampered with in any way.

As technology advances, it is important for investigators and courts know that any photo they are looking at hasn't been tampered with since it was taken. It is also important to note that your average camera doesn't have this functionality, only high-end cameras specifically designed for this type of work have this 'fingerprint' ability.
6. Most people would know that it's not a good idea to look directly at the sun - either with the naked eye or through a camera. There is one type of camera though that is used for Solargraphy (among other things) that allows you to look at an image of the sun in a safe way. What type of camera can you use to look at the sun and not risk burning your retinas?

Answer: Pinhole camera

A pinhole camera is one of the simplest cameras and anyone can make one. A pinhole camera is basically a box with a small hole in one side. The idea is that light passes through the hole and an image is projected onto the opposite side of the box - similar to how the human eye works.

To view the sun (or a solar eclipse) in a safe way, a sheet of paper with a tiny hole can be held parallel to the ground (although you'll have to figure out the distance from the ground by yourself!). The image of the sun should then be on the ground in front of you.
7. In the early 21st century a new kind of camera was introduced which made photography quick, easy and immediately 'share-able' for most people who owned one of these devices. What was this amazing device?

Answer: Camera phone

The mobile phone (cell phone, or other-named device depending on which country you live!) was adapted to include a still, and sometimes, video camera in the early 21st century. Of course they were no match for a stand-alone camera yet could take photos and video quickly and easily with the photographer then able to immediately share the images with others (via messaging service) or upload the images to the internet.
8. There are many different types of photography but one that interests me, personally, is 'aerial photography'. But what is aerial photography?

Answer: Taking photos of the ground from an elevated position

Aerial photography is the practice of taking photos of the ground from an elevated position. Technically, you could do this by standing up and taking a photo of your feet but it's probably not as interesting as taking a shot from a helicopter of the tops of buildings poking through the clouds.

Taking photos of one aircraft from another is considered air-to-air photography and is a different style of photography altogether.
9. Black-and-white photography falls under the banner of this type of photography, as does any type of photography using a single colour hue. What is this type of photography called?

Answer: Monochrome photography

Monochrome photography covers all those types of photography using a single colour. The word 'monochrome' comes from Greek meaning 'one' and 'colour'.

Timelapse photography can be done in colour, as well as monochrome so doesn't quite fit the answer specifications here. Kodachrome was a type of film introduced by Eastman Kodak in the mid-1930s for shooting colour slides (diapositives).
10. One thing that has fallen by the wayside with the advent of digital cameras is film processing. The photo processing industry was the biggest worldwide user of which non-renewable resource?

Answer: Silver

Silver was used in the printing process for both black-and-white and colour photos. Due to the introduction of digital photography in the early 2000s the demand for silver from the photographic industry decreased, although other industries picked up the 'slack' and increased their consumption of the precious metal, keeping the price of silver reasonably steady during this 're-balancing' of silver consumption.
Source: Author lones78

This quiz was reviewed by FunTrivia editor WesleyCrusher before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.
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