PCC Photography Camera RAW Test
Questions and Answers Questions and
Correct Answers
What happens when you capture a RAW image? Ans: · Light
strikes each photosite
· Measures how much light hits each site
-A lot of photons hitting something will lose a lot of power
· Signal is amplified through the amplifier
-Weak signal initially
-Information comes to photosites, then goes to amplifier
What does an analog to digital converter do? Ans: 1. Will look at
information on each photosite and will turn fluctuation of
electricity into 1's and 0's (data)
2. Converts data into a string of 12 or 14 1's and 0's (digital word)
What value will an analog to digital converter use with a 12 bit
converter? Ans: A value between 0 and 4096
What is a RAW image? Ans: 1. Nothing is changed or deleted
2. Purest form possible of data
What RAW is not Ans: 1. RAW does not magically make your image
sharper
2. Will probably not look as good as JPG right off the bat
3. RAW just gives more editing capabilities
-Average consumer doesn't understand this kind of file
Why use RAW? Ans: 1. For a digital negative
2. Editable white balance
3. Highlight recovery
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4. More editing freedom
6. Batch processing
7. Nondestructive editing
Downsides of RAW Ans: 1. RAW use more storage
2. Others may not be able to read your files
3. More complicated workflow
Characteristics of editable white balance Ans: 1. Fully editable
white balance with RAW
2. RAW saves your white balance settings along with the file
3. A JPG removes the color and rewrites file it ends up with to
match white
Characteristics of highlight recovery? Ans: 1. If you lost detail
(highlights), it may be able to recover that detail
2. If you have all 3 (red, green, blue) channels, if you still have
detail in 1/3 of the channels, you can regain the detail
3. If you have overexposed all 3 channels, you cannot recover
those lost details
4. For example, if you have an image of sky and clouds, and they
are overexposed, but if there's still detail in the red/green
channels, then you can recover and fix the exposure
Characteristics of digital negatives Ans: 1. A film negative uses
exposed film
2. Must be processed into a negative
3. Doesn't look anything like the print; looks like a reverse of it
4. Areas of the film with the most light that hit it are the darkest
5. Once developed, goes into darkroom, and photo looks normal
Characteristics of batch processing Ans: Can edit 1 photo and
apply the edit to a batch of photos
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