Reveiw Questions and Critical Thinking Questions

Topics: Camera, Single-lens reflex camera, Digital camera Pages: 2 (861 words) Published: November 11, 2012
Review Questions & Critical Thinking Questions
1.What is a camera?
A camara is a light-tight box that contains a light-sensitive material or device and a way of letting in a desired amount of light at particular times to create an image on the light-sensitive material. 2.What is a convex lens?

A convex lens is bend the light toward the center of the lens, since one or both sides of the glass curve out. It also takes the various rays of light and bends them toward the same point, which ultimately allows an image to form. 3. What three components make up a film camera? Define each part. The three components are First is the mechanical element, which is the camera body and the parts associated with it the second one is the optical element, This is otherwise known as the camera lens. Finally, we have the chemical element, which is the film. These three different elements make up a film camera. 4. What is a pentaprism? What job does it do in the camera?

 A pentaprism which is a five-sided mirror. The job of the pentaprism is to flip the light from the image so that the image appears right side up rather than shows the inverted image that first occurs. 5. What are point and shoot cameras? How do they differ from SLR cameras? Point and shoot cameras are those that use an optical viewfinder, rather than having the semiautomatic mirror. The image the photographer sees through the viewfinder is not the exact same image that will be recorded. An SLR, or single lens reflex, camera has a semiautomatic movement of the mirror, which produces an exact image in the viewfinder, is different from the point and shoot cameras because the point and shoot cameras shows not the exact image that will be recorded, and the SLR show a exact image. 6. What is JPEG? What considerations have to be kept in mind with JPEG? JPEG  is the default file format in many digital cameras on the market today.We need to consider JPEG has an important drawback to this space-saving advantage—it is...
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