Why is a pinhole camera useful to your world?
because you can take it any where and it takes loads of infomaition
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\n. \n Answer \n. \nYou can develop your pictures from a pinhole camera in two different ways. The first school of thinking dates back to the Aztecs who would take the hides of lizards recently killed and put them in the darkest hole they could find. The process could be improved by taking …the picture in and out of the hole. Repeating this process until the picture was visible on the lizard hide. \n. \nThe second more modern school of thought was made by Ben Franklin who noticed pictures of his families trip to Maine on his stomach after he was struck by lightening in his famous kite experiment. He then developed the company Kodak and the world has never been the same. (MORE)
Get a box. Decide which of the six sides are "the ends." Cut a hole in each of the ends. Make sure they're lined up with each other, and about the same size...say, 1 inch square, and centered on the panel. Get a piece of aluminum foil and pierce a very small hole in it with a sewing needle. Tape i…t over the hole on one end, with the hole in the foil centered on the hole in the box. Get four one-inch bolts. Drill holes in the end that doesn't have the foil piece on it, and put the bolts through. Put some epoxy on the underside of the bolt heads before you put them in the holes, and they won't fall out. Get a piece of cardboard, masonite or whatever you've got, drill holes in the same places as in the box, and call this the camera back. Get four wingnuts to hold the back on. Get the film you're going to use in the camera, and cut off a piece. Set the camera on the table with the foil side facing down, and lay the film over the hole. Put strips of duct tape above and below the film--when you load the camera, you'll put the film between the strips of tape. Get another piece of duct tape that's about six inches long. Lay it on the table with the sticky side up. Cut a piece of paper, duct tape or whatever that's twice as long as the foil, and stick it to the duct tape so there's an area with no sticky stuff on it. This piece of duct tape is the shutter. The non-sticky area is so you don't rip the foil off when you use the camera. Do all this stuff, and you have a pinhole camera. (MORE)
A pinhole camera is the most simple form of photography and requires practically no knowledge of photography to build a pinhole camera and capture an image using it. The basic principle behind a pinhole camera is the light enters through the pinhole at the front of the container (eg. a shoebox) tra…vels through the light proof box and hits the photographic paper at the back of the box. The paper reacts to the light and where the light falls it is exposed (dark) and where there is no light the paper remains light. As you will be able to see after the image has been developed; the image produced will be a negative of the actual image. The image will also be upside-down due to the way in which the light enters the box. Then all that remains is to develop the photographic paper as you would normally. You will not see anything until you start to develop the paper. The paper will still appear white. Remember: - Light only travels in straight lines, - The box will need to be light proof apart from the pinhole at the front, - The pinhole cannot be too small, it can quite easily be too large, - Only place the paper in the box and remove it from the box in a darkroom. - Anything can be turned into a pinhole camera! Even rooms... Suggestions: - An old shoebox works well, as does a film canister. - Use black and white paper, it is easier to develop and far simpler to start with. Maybe experiment with colour afterwards. - You will need to use trial and error to find the correct exposure time. eg, if the image appears too dark decrease the exposure time, if it appears too light increase the exposure time. Have fun, pinhole camera's are great to make and a good introduction into photography. Alex Apps **************** - the aperture should be about 1/100th of the distance to the image plane visit http://en.wikipedia.org/wiki/Pinhole_camera for a fascinating story about the world's largest pinhole camera Micron (MORE)
Camera means "room" The first pinhole camera was made by someone who's name we do not know. Any room that has opaque walls and a relatively small opening on one side will exhibit the "pinhole camera" phenomenon. This was noticed in ancient times and commercialized in the renaissance.
In my opinion, you cannot, because of the limitations of the camera. See Why do pinhole cameras need to have small holes?
You can figure out why an image in a pinhole camera is upside down if you think about how the light travels to get to the image. Light from an object higher (or the top of the object) than the camera travels in a straight line down to the camera. It goes through the pinhole and continues heading …down until it hits the back of the camera. This means that the image of something higher than the camera is now low in the image. The opposite is true for light from an object lower than the camera (or the bottom of the object): it travels to a point higher in the image. Still does answer my question, how did the image get upside down? answer was no concusive. (MORE)
A camera admits light through an opening to expose an image on film. To get a sharp image if the light is not bright, you need a large hole, but the larger the hole, the more blurred (unfocused) is the image. But if you make the hole as small as a pinhole (like poking a pin through cardboard), you w…ill get a focused picture if the light outside is bright enough. If the hole is any larger than that, you need to put a lens in the hole to focus the light. The larger the hole, the dimmer is the scene that you can capture, but the larger the lens, the more complicated is the optics (the physical design of the glass lenses, using several lenses in a row). (MORE)
an eye is similar to a pinhole camera as light travels from a scene into the hole or eye and this produces the inage.
There is no reason you could not in theory, but it would require an extremely long exposure. In truth, it would probably be impractical.
to improve a pinhole camera you can change the size of the box so that the picture appears clear and you can also capture lots of surroundings around you in the pinhole camera
Longer exposures. The nature of a pinhole camera does not permit much change in the size of the aperture. That's why they are called "pinhole" cameras: little bitty holes.
A camera that has a miniature lens mostly used for surveinlancewhere the situation needs that the camera is not obvious such aspolice undercover work.
You would be better off to Google this and look for an image as it is tough to put in writing. However, I'll try. Light reflects in all directions from each point of an object. Imagine how a single light ray from the top of an object on the left travels to your right towards the pinhole camera apert…ure that is placed at 1/2 the object's height. The only rays that will make it through are going in a downward direction at an angle. They will reach the film surface but will be at the bottom of the camera. Conversely, rays from the bottom of the object will act the same, but in an upward angle of direction. They will reach the film but be at the top of the camera. Hence the image is inverted. If that is too hard to picture, the letter X is a good example of how this works - or as I said, Google it. (MORE)
You can make a small pinhole camera with an oatmeal box--this is the traditional pinhole camera body. You poke a very small hole in one end of it. You put a piece of photographic film at the other end, and create a shutter out of a piece of duct tape. \n. \nYou can make a really large pinhole camer…a by doing the same thing but using your car as the camera body. (MORE)
I'm looking for the same answer,someone reply!. cos' when i look on Google it suggests the similarities but not the differences-.- c'mon people:L. answ2 . have a crack at Pinhole Camera in wikipedia.org, and similarly with eye.
A pinhole camera works by letting a small amount of light into atiny aperture. This allows the camera to be used in surveillancewhere it can be difficult to spot.
A pinhole camera you make yourself control the shutter speed (usually a piece of cardboard) manually by pulling it up and down. The image is then burned onto film. The difference is that most regular cameras have a sensor so that your pictures would be over or under exposed. Also with a pinhole came…ra the is a huge risk of ruining your film because some unwanted light snuck into the interior of the camera. The pictures will also be poorer quality than that of a regular camera. There are many more differences but that's the gist of it. (MORE)
An image made with a pinhole camera can first of all be affected by how much light the paper is exposed to. The longer you keep the hole of the camera uncovered, the more the light will reach the paper, thus affecting how much of an image will be created. If you expose the paper too briefly, the pap…er might not get exposed enough and as a result when you try to develop the picture there will either be no image or a very faint one. However, if you expose the paper for too long, the image could end up too dark. If there are any areas where light can leak through the camera, that can result in the image being ruined and turning black. The size of the hole might also affect the image. If the hole is not quite big enough, there will not be sufficient light for the paper to be exposed and an image formed. Make sure that the hole is just the right size (the size of the tip of a pin). (MORE)
it has a fixed small aperature, so everything will be in focus therefore it will be used in security cameras or endoscopes.
It was discovered independently several times in history; probably credit should go to AbÅ« 'AlÄ« al-á¸¤asan ibn al-á¸¤asan ibn al-Haytham who not only discovered the affect but wrote a book on optics to describe it. He discovered the affect in Cairo, Egypt.
Like any other camera, the 'shutter' opens and closes to allow light to enter into the camera to be exposed on the film plane. . A pinhole camera is a very primitive camera that does not have a lens. To put it simply, a 'pinhole camera' is a light-proof box with a small hole punctured in one side.… Light passes through this small hole and projects an inverted image on the opposite side of the box.. The smaller the hole, the sharper the image, but the dimmer the projected image.. A pinhole camera's shutter is usually manually operated because of the lengthy exposure times needed. It usually is made of a piece of light-proof material to cover and uncover the pinhole. Typical exposures range from 5 seconds to hours and sometimes days. (MORE)
In the 10th century AD, Arabian scientist Ibn al-Haytham wroteabout pinhole cameras. Over the years, the design and idea has beenimproved upon.
It literally takes long-exposure photos through a pinhole that projects an inverted image into a darkened box.
probably to take a picture of something very bright, like the sun. In reality, the pinhole camera is not the ideal instrument for taking photographs of the sun. It is used instead to create certain specific effects in the photograph. Light passing through the pinhole is not brought to a sharp focus… on the image plane in the same way a lens would, so the sharpness of the image is limited, and dependent on the size of the pinhole, the distance of the pinhole from the film plane, and the amount of diffraction from the edges of the pinhole. Even with optimum sharpness, the image will be very soft, with fairly fuzzy outlines. In the hands of a skilled photographer, the effect can be very pleasing. (MORE)
Pinhole was a slang term for A. a primitive type of camera with a very small aperture, giving maximum depth- but requiring much light, and B. this still in use- the smallest , and thus the deepest in depth of field aperture of any given camera or lens. My most modern Nikon F-80 has a preselected F/3…2 pinhole setting ( coded in as M) on the modal dial) this is great for distance shots of skyscrapers and the like on bright days only! Photo sensors will shift to a brighter aperture if there is anadequate light- such is progress. l25 ( shutter speed) and F-32 can work wonders with buildings. (MORE)
Alhazen (Ibn Al-Haytham), a great authority on optics in the MiddleAges who lived around 1000AD, invented the first pinhole camera,(also called the Camera Obscura } and was able to explain why the images wereupside down. The first casual reference to the optic laws that madepinhole cameras possibl…e, was observed and noted by Aristotlearound 330 BC, who questioned why the sun could make a circularimage when it shined through a square hole. (MORE)
Ok you wouldn't use "photo Paper" Photo paper is what the photo is printed on. you would use Black and White 35mm film..this is available at most photo shops.
A pinhole camera is similar to the human eye because light travels from a scene into the hole or eye and this produces the image.
a pinhole camera has a very small aperture for the light to pass through. Thus the sharp focus distance is very great too. You will get a bigger image if you move your paper or whatever the image lands on, further away from the pinhole.it may not be as bright, though
The light rays coming from the top and bottom of the object intersect at the pinhole.
They aren't. An eye has a lens and an adjustable iris, neither of which a pinhole camera has.
1-Extremely long exposure times, typically ranging from 5 sec. to several hours. 2-Aperture is very small. 3-photos taken from pinhole camera are not sharp. 4-shutter was manually operated.
Not only are pinhole cameras entirely legal to use, they can be fun to build and use. Making and using a pinhole camera uses all of the really important principles of photography. Any serious student of photography should do just that. Apart from the satisfaction of having a picture that you can s…ay you created all by yourself, it will teach the principles in only two or three hours. (MORE)
A major advantage of a pinhole over a simple (or not so simple) lens is "infinite depth of field." To see this for yourself poke a pinhole into a thin sheet of opaque material and hold the pinhole close to your eye (if you wear glasses, take them off). Hold one of your fingers a few inches in front …of the pinhole and notice that your finger is about the same clarity as everything else beyond. That's infinite depth of field. A more or less scientific explanation for depth of field is that an optical image is made of of very tiny "circles of confusion." When the circles of confusion are small enough, they are called "points" and the optical image is considered to be in focus. Therefore, points of focus. A pinhole camera has infinite depth of field because the pinhole creates circles of confusion the same size as the pinhole all over the inside of the camera, and the little circles of confusion are small enough to be regarded as points of focus. These have a high enough resolution to be acceptable as a coherent image. Photographers can use a small aperture to increase the depth of field, but except for rather uncommon lenses, the depth of field is not very extensive compared to a pinhole image. Source: The Beginner's Guide to Pinhole Photography By Jim Shull (MORE)
When the light rays from a light source enters the hole of pin hole camera it goes in a straight line so when it enters the top becomes bottom and bottom becomes top. So the image is inverted
The pinhole camera is an early form of the camera. People use it nowadays just to see what is was like, and it can make a cool effect on your photo, but you have to do it right or it will be under/over exposed.
no stereoscope are the glasses we use while watching 3-d movies and pinhole camera shows the image of anything on the other side which is inverted and enlarged
The pinhole camera is simple and requires no complex lens-based optical systems to work effectively as an image maker. In its simplest form it is no more than a light-tight box with a pinhole on one end and a place for a sheet of light sensitive material on the other.
I think they are meant to be tiny, like it says pinhole. I dont know if that is right but I'm pretty sure my science teacher told us that last year, hop it helps :)
A pinhole and a camera both determine how much light comes through to make a picture, if there isn't enough light in you photo . The photo wont show.
imagine you're in a room with all the windows blacked out, you cut a small hole in the black out material allowing a small amount of light in, looking at the wall the light is projected on, you will see an upside down image of what is happening outside, this is how the pringle camera works, i did th…is on my taster day at college, hope it helps :) if you have the patience there is a video on bbc about it, but i'm not sure what it is called. (MORE)
It depends on the size of the hole in the pinhole camera. If the hole is small, less ray light will flow through the gap. Therefore the image will naturally be dimmer. Not only that but it is sharper as the hole is smaller, as well. R :)
A pinhole camera has special paper put inside of it, absorbing the light making lots of shadows ect.
because in both the cases the light is travels through the lenses and they both have lenses they both display a picture upside down but the brain iterprets this as wrong so it flips it the right way round. that's why both are same.
Not a Lot to go on... Assuming you're using photo paper as a negative, I'd rate it with an ISO of about 1.5 or so. If you're using an oatmeal tube or somesuch with a diameter of ~10cm, and have a pinhole of about .5mm, you'd have an f-stop equivalent of around f 256,or320 if I remember my equations …right. Using the rule-of-thumb of exposure on a bright day at F11 and 1/ISO = F11@1sec. Therefore exposure should start around 2 hrs. or so. "Bracketing" would be 1hr. 2hr.4hr. Even with printing paper, reciprocity is bound to take effect, however, So I'd suggest (if necessary) 1hr,2hrs, then 5hr., 12 etc. Have fun! (MORE)
Wireless pinhole cameras bring new technology to a longstanding niche in the camera industry. They can be purchased through mass merchandising and auction sites, such as eBay and Amazon. Shops that specialize in tech gadgetry or 'spy' goods, such as SpyTechs and LightInTheBox also sell them.
A pinhole camera is a simple form of camera. At it's simplest, this form of camera works by having a light-proof box with a small hole on one side - similar to a human eye.
Yes. If you use your eye to see the picture, you will see color. If you use photogrphic paper to record the image, whether or not you see color is determined by the nature of the film -black/white or color. There is nothing in the physics of the camera that prevents you from seeing color.
It is easy to understand once the light comes on. Say that you arestanding in front of the camera and it is your image in the camera.Imagine light traveling in straight lines. A bit of light from thetop of your head will travel DOWN toward the pinhole, it willcontinue in a straight line toward the b…ottom of where the image isforming. Similarly, a bit of light from your feet will travel UP tothe pinhole and continue up to where the top of the image is.Follow the same reasoning for bits of light coming from anywhere onyour body, and you will see that the image must appear upside down. (MORE)
The image will be formed upside-down and reversed horizontally onthe back of the inside of the camera.