Group questions for reading 2

 

GROUP 1

P71 – 73

 

Name some of the cameras that the reading mentioned.  What kinds of cameras other than the ones we use sparked an interest for you?

 

What are the major image formats?  What is the defining char?

 

Look up GIF and explain what it is.

 

What is Lossless v lossy compression

 

85-87

We went over this already, but what is the “normal” focal length for most “prosumer” DSLR cameras.

 

WHY is this different from a 35 mm camera and a 50 mm lens?

True or false and why:

A 50 mm lens would be like a telephoto on a basic digital camera.

 

GROUP 2

 

What are the characteristics of a wide-angle lens? 

 

What are the characteristics of a Telephoto lens?

 

P 87

What are the Characteristics of a macro lens?

 

PP 90-98

 

What is the difference between resolution on a screen Vs. resolution in camera

 

Explain the relationship between the size of the sensor, pixel density, megapixels, and quality.

 

GROUP 3

 

When companies refer to the “factor” (picture factor or sensor factor) of a camera, what does that mean?

 

Monitors as viewfinder:

What is the advantage or disadvantage?  High end doesn’t usually have this, why?

 

What is a histogram?

 

What is metadata?

 

Explain optical zoom V digital zoom

 

What is digital ISO?  What happens when you increase the rating?

 

GROUP 4

 

Explain what noise is and what it looks like

 

How does ISO relate to noise? 

 

See chart on page 95

What is white balance?

 

What are “metering modes”?  Explain them

(not in reading) How is this related to exposure bracketing?

 

Explain Sharpening Mode

 

Explain how shutter speed and ISO is related to noise?

 

Explain Noise reduction.  What do we get and what do we loose?

 

What is Image stabilization

 

What are the factors that influence the cost of a camera?