Please click on the following link and read ALL of the pages in the article.
http://electronics.howstuffworks.com/camera.htm
Please answer the following questions:
1. Describe how light bends twice when it encounters a lens.
2. When does the angle of light entry change?
3. What lens has a long focal lenth?
4. What lens has a short focal lenth?
5. A higer focal length number indicates a __________ image magnification.
6. Who came up with the term photography and in what year?
7. Where does the term camera come from and what does its origin mean?
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34 comments:
1) It bends firsst when it enters the lens and again when it leaves it.
2) The angle of light entry changes when you move the object closer or farther away from the lens.
3) A telephot lens has a long focal length.
4) A wide-angle lens has a short focal length.
5) larger
6) Sir John Herschel used the term in 1839.
7) The term came from camera obscura, meaning dark room.
Julia Deitz
2nd Period
1. As light enters the glass at an angle it bends in one direction. It bends again when it exists the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2. The angle of light entry changes when you move the object closer or farther away from the lens.
3. A telephoto lens.
4. A wide-angle lens.
5. A higher focal length number indicates a greater image magnification.
6. John Herschel - 1839
7. It comes from the latin word meaning "dark room"
1. manual single-lens-reflex brings light together
2.The angle of light entry changes when you move the object closer or farther away from the lens.
3.a telephoto lens,has an especially long focal length.
4.wide-angle lens has a much shorter focal length
5.A higher focal length number indicates a greater image magnification.
6.Sir John Herschel came up with the term in 1839
7.The term camera comes from camera obscura, Latin for "dark room."
cody andrus
2nd period
1-the light of the image hit diffrent concave and convex lenses
2-changes when you move closer or further from an object
3-telephoto lens
4-wide angle lens
5-larger
6-herschel 1839
7-camera obscura, Latin for "dark room.
1.As light enters the glass at one angle it bends in one direction. It bends again when it exits the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2.The angle of light entry changes when you move the object closer or farther away from the lens.
3.Telephotolens
4.Wide-angle lens
5.Greater
6.John Herschel in 1839
7.camera obscura(dark room)
Natalie Surckla
2nd Period
1-7 Questions
1) As light enters the glass at an angle, it bends in one direction. It bends again when it exits the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2) The angle of light entry changes when you move the object closer or farther away from the lense.
3) Teleophoto lens has a long focal length.
4) A wide-angle lens.
5) A higher focal length number indicates a greater image magnification.
6) John Herschel- 1839
7) The term camera comes from Camera Obscura which means "dark room ".
Sarah Alcorn 2*
1) The light bends when it first hits the glass and it also bends when it exits the glass because when the light hits the air, it speeds up more than the other parts of the light.
2)It changes when the object moves closer or farther away from the lense.
3) A telephotp lens has a large focal length.
4) A wide angle lens has a short focal length.
5)greater
6)Sir John Herschel in 1839 coined the term.
7)The term camera comes from camera obscura, Latin for "dark room."
Chris Hanford 2nd Period
1. Describe how light bends twice when it encounters a lens.
Light bends first when it encounters a lens at the first point light touches the outermost part of the lens. The angle of the bend depends on how far the lens extends. Depending on the angle of the first bend the second bend will be either obtuse or acute to the first bend. If the first bend is acute the second bend will be obtuse.
2. When does the angle of light entry change?
The angle of light entry changes depending on how far away or how close the object is from the lens.
3. What lens has a long focal lenth?
A Telephoto lens has a very long focal length.
4. What lens has a short focal lenth?
A Wide-Angle lens has a short focal lenght.
5. A higer focal length number indicates a __________ image magnification.
A higher focal length number indicates a greater image magnification.
6. Who came up with the term photography and in what year?
John Herschel came up with the term photography in 1839.
7. Where does the term camera come from and what does its origin mean?
The term camera comes from camera obscura and its origin means "dark room"
Jeff Lengel
2nd Period
1. Describe how light bends twice when it encounters a lens?
The light bends because its is reflected off the lens depending on the angle it shot at.
2. When does the angle of light entry change?
It changes when you move the object closer or farther away from the lens
3. What lens has a long focal lenth?
25mm
4. What lens has a short focal lenth?
50 mm
5. A higher focal length number indicates a __________ image magnification.
-Greater
6. Who came up with the term photography and in what year?
John herchel in 1839
7. Where does the term camera come from and what does its origin mean?
Camera obsciura and it means dark room.
Pin Hole Camera, Rachel Nagy 2nd
The pin hole camera has no conventional lens. The hole is very small and the light is focused by confining rays through it. The aperture is 100 times smaller than the distance to the screen. The shutter is a hand operated flap of light material. The film of this camera requires a much longer exposure, anywhere from 5 sec - days.
Hannah Vidmar 2nd period
1. As the light enters the glass at one angle, it bends going toward one direction. Then it bends again as it exits the glass.
2. The angle of light entry changes when you move the object closer or father away.
3. A telephoto length.
4. A wide-angle lens.
5. A higher focal lenght number indicates a greater image magnification.
6. Sir John Herschel, 1839
7. The term camera comes from camrera obscura meaning "dark room" in latin.
tess polando 2*
1. it bends because the light waves when hiting the lens bends due to the wave slowing down. then when it leaves the lens then the wave gets faster.
2. when you move the object closer or farther away from the lens.
3. the lens with the grater distance between the lens and the image of an object in the far distance
4.the lend with less distance between the lens and the object.
5. A higer focal length number indicates a ___greater_______ image magnification.
6. Sir John Herschel, 1839
7. comes from camera obscura, Latin word for "dark room"
photo meaning light and graphy meaning drawing
spencer robertson
2nd period
1.light bends by it bounces of an object and redirect them so that they come together to form a real image.
2.the angle of light changes when you move the object closer or farther away from the lens.
3.The lens that have a long focal length is calld a telephoto lens.
4.The lens that have a shrt focal length is called a wide-angle lens.
5.A higher focal length number indicates a "greater"image magnification.
6.the person who came up with the word photography is sir john herschel in the 19th century.
7. the term camera come from camera obscura, latin word for "dark room".
1. since the light bends in the gfirst lens some of it goes through faster so a second lens is needed to bend the light again so it slows down and all of the light hits th efilm at the same time.
2. when the object is moved closer or farther away from the lens.
3. a telophoto lens.
4. a wide angle lens
5. larger
6. sir john herschel in 1839
7. comes from the latin term camera obscura, it is latin for dark room.
maximillian j trevino 2nd period.
Joe Daddario
Hiho38daddario@aol.com
1. Describe how light bends twice when it encounters a lens. Light bends twice when it enters the lens and leaves the lens.
2. When does the angle of light entry change? The angle of the light entry changes when when you move closer to or further away from the lens.
3. What lens has a long focal lenth? A telephoto lens has a long focal length.
4. What lens has a short focal lenth? A wide-angle lens has a short focal length
5. A higer focal length number indicates a __________ image magnification. A higher focal length number indicates a greater image magnification.
6. Who came up with the term photography and in what year? Sir John Herschel came up with the term photography in 1839
7. Where does the term camera come from and what does its origin mean? The term camera came from camera obscurra and it means dark room.
Hannah Rychcik 4th period
1. Describe how light bends twice when it encounters a lens.
it encounters an angle and bends then bends again at the second angle.
2. When does the angle of light entry change?
when it moves closer or further from the lens.
3. What lens has a long focal lenth?
a telephoto lens
4. What lens has a short focal lenth?
a wide-angle lens
5. A higer focal length number indicates a __________ image magnification.
greater
6. Who came up with the term photography and in what year?
Sir John Herschel
1839
7. Where does the term camera come from and what does its origin mean?
photos meaning light and graphein meaning writing or drawing.
Greek
Justine Dickard
period 4
1. Describe how light bends twice when it encounters a lens.
When the light enters the glass at an angle it bends in one direction and then it bends again when it leaves the glass.
2. When does the angle of light entry change?
It changes when you move the object closer or farther away from the lens.
3. What lens has a long focal lenth?
A telephoto lens has a long focal length.
4. What lens has a short focal lenth?
A wide-angle lens has a short focal length
5. A higer focal length number indicates a __________ image magnification.
greater.
6. Who came up with the term photography and in what year?
Sir John Herschel came up with the term in 1839.
7. Where does the term camera come from and what does its origin mean?
The term camera comes from camera obscura, Latin for dark room.
brittany kratochvil
4th period.
1. Describe how light bends twice when it encounters a lens.
light bends twice when it encounters a lens by bending when it enters the camera and then it bends again as it exits the camera.
2. When does the angle of light entry change?
this changes when you move the object closer or farther away from the lens.
3. What lens has a long focal lenth?
The lens that has a long focal lengh is a telephoto lens.
4. What lens has a short focal lenth?
The lens that has a short focal lengh is called a wide-angle lens.
5. A higer focal length number indicates a __________ image magnification.
greater.
6. Who came up with the term photography and in what year?
Sir John Herschel came up with photography in 1839.
7. Where does the term camera come from and what does its origin mean?
the term camera comes from camera obscura, Latin for "dark room."
Kayla Stefancic
4th period
1.Light bends twice when it encounters a lens because parts of the light wave enter the air and speed up befor eother parts if the light wave. On a convex lens the light will bend toward the center becaus the lens isbent on one or both sides.
2.The angle of light entry changes when you move the object closer or farther away from the lens.
3.a telephoto lens has a long focal length.
4.a wide angle lens has a short focal length.
5.a high focal length number has a greater magnification.
6.Sir John Herschel, a 19th century astronomer and one of the first photographers, came up with the term in 1839.
7.The term camera comes from camera obscura and it means dark room in latin.
Julia
Slusarz
4th
1.as it enters the glass at an angle, it bends in one direction. Then it bends again when it exits the glass.
2.The angle of light entry changes when you move the object closer or farther away from the lens.
3. A telephoto lens.
4.A wide-angle lens.
5.a greater
6.Sir John Herschel in 1893.
7., The orgin comes from greece, it is a combination of two Greek words, photos meaning light and graphein meaning writing.
Katelyn
Light bends when it enters the camera and exits the camera.
When the light waves hit the glass.
Longer facal length the more magnification the shorter focal legnth the less magnification.
greater.
Sir John Herschel in 1839.
camera obscura,latin for dark room.
Erica MacDonald 4*
1. Light bends twice as it enters the lens because it enters the glass at an angle and then it bends in one direction. It bends again when it exits the glass.
2. The angle of light entry changes when you move the object closer or farther from the lens.
3. A telephoto lens has a long focal length.
4. A wide-angle lens has a short focal length.
5. A higer focal length number indicates a GREATER image magnification.
6. Sir John Herschel came up with the term photography in 1839.
7. The term camera comes from camera obscura, which is Latin for "dark room."
Michelle Zoldan! 4*
1.As light enters the glass at an angle, it bends in one direction. It bends again when it exits the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2. The light will bend when it exits the lens.
3.A telephoto lens has a long focal length.
4.A wide-angle lens has a short focal length.
5.A higher focal length number indicates a greater image magnification.
6. Sir John Herschel in 1839.
7. The term camera comes from "camera obscura", Latin for "dark room."
Corie Cappelucci 4*
1. As light enters the glass at an angle, it bends in one direction. It bends again when it exits the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2. Light will bend when it exits the lens.
3. A telephoto lens has a long focal length.
4. A wide-angle lens has a short focal length.
5. A higher focal length number indicates a greater image magnification.
6. Sir John Herschel in 1839.
7. The term camera comes from camera obscura, Latin for "dark room."
Joe Buettner
5th period
sep/19/07
1.The glass splits the ligt waves. Double ocnvex lens.
2. When the the light is going slower or faster.
3. Telephoto lens
4.Wide angle lens
5.greater
6. in 1839 John Hercial
7.Camera escura, latin for dark room.
Cali Sanker
9/19/07!
4th period
1.As light enters the glass at an angle, it bends in one direction. It bends again when it exits the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2.The angle of light entry changes when you move the object closer or farther away from the lens
3. Telephoto lens, a lens with an especially long focal length
4. wide-angle lens has a much shorter focal length.
5. A higher focal length number indicates a greater image magnification.
6. Sir John Herschel came up with the term in 1839
7. The term camera comes from camera obscura, Latin for "dark room."
ashley ziegler
4*
1.light bends once when entering the glass lens, and bends a second time when exiting.
2.The angle of light entry changes when you move an object closer or farther away rom the lens
3.A telephoto lens and a long focal length.
4.A wide-angle lens is good for shooting at a short focal length.
5. greater
6. John Hershel in 1839
7. Camera is a shortened form of the Latin word "camera obscura" meaning "dark room".
Sean Keta
2nd Period
1.The light enters the glass then bends again which hits it twice.
2.Light bends when it exits as well as when it enters.
3.Telephoto lens has a really long focal length.
4.Wide angle lens has the smaller focal length.
5.Greater
6.Sir John Herschel in 1839.
7.Its Greek and words for light and writing.
Hey Mr. Bishop
I thought you might like this article, put out by the Exploratorium in San Francisco. It does a good job explaining dof and goes well with a unit on pinhole photography.
http://www.exploratorium.edu/light_walk/
PHIL SHEA. 4th period. 10/25/07
1. Describe how light bends twice when it encounters a lens. It bends when it enters and it bends when it goes over the mirror.
2. When does the angle of light entry change?it changes when you move around the object.
3. What lens has a long focal lenth?
telephot
4. What lens has a short focal lenth?
wide angle lens
5. A higer focal length number indicates a __________ image magnification.larger
6. Who came up with the term photography and in what year?
john herschel, 1839
7. Where does the term camera come from and what does its origin mean?
obscura,alatin word, that means dark room
PHIL SHEA. 4th period. 10/25/07
1. Describe how light bends twice when it encounters a lens. It bends when it enters and it bends when it goes over the mirror.
2. When does the angle of light entry change?it changes when you move around the object.
3. What lens has a long focal lenth?
telephot
4. What lens has a short focal lenth?
wide angle lens
5. A higer focal length number indicates a __________ image magnification.larger
6. Who came up with the term photography and in what year?
john herschel, 1839
7. Where does the term camera come from and what does its origin mean?
obscura,alatin word, that means dark room
Phil Shea. 4th period. 10/25/07
trying to find out which one didnt post
1) It bends firsst when it enters the lens and again when it leaves it.
2) The angle of light entry changes when you move the object closer or farther away from the lens.
3) A telephot lens has a long focal length.
4) A wide-angle lens has a short focal length.
5) larger
6) Sir John Herschel used the term in 1839.
7) The term came from camera obscura, meaning dark room.
Mike Spies
4th
1. When light enters the glass at an angle it bends in one directionand bends again as it exists the glass because parts of the light wave enter the air and speed up before other parts of the wave.
2.The angle of light entry changes when you move the object closer or farther away from the lens
3. A telophoto had a long focal length
4.A wide-angle lens has a short focal length
5. A higher focal length number indicates a greater image magnification
6.The term camera comes from camera obscura meaning dark room in latin
i dont know why you didnt get this mr. bishop but i definitly did this one in class
Danny Cappelucci
4th Period
1. the light bends for the first time when it eneters the lens. then a second as it exits.
2. the angle of light entry changes when you move the object, either closer or farther away.
3. a telephoto lens
4. a wide-angle lens
5. larger
6. John Herschel in 1839
7. the tefm comes from the latn word for dark room, which is camera obscura
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