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Cameras
Whether it's a photo of a new baby, a wedding or a day at the beach, cameras help us record and remember life's memories. Ask questions about the camera's history and function here.
6,430 Questions
How do you unlock a samsung digital camera's memory card?
You may find a small slider on the side edge of the card to lock and unlock it. The idea of it is to prevent accidental erasure of images.
How do you ask a girl to pose for photograph?
Just be casual about it.
If this is for a photography assignment,and your maybe asking her to pose nude or just normally,explain to her the situation,maybe why you'd like her in the photos ect (so she doesn't think your being a perv) and just see what she says!
If worst comes to worst she could just say no thanks and then you can find someone better to work with.
Hope it helped :)
Having a drink first helps. The above response is right, be casual. If you're taking a college course and have access to a studio you should have no problem, I never have. Explain your involvement with photography and explain that you need a model and that there is no payment for it. It also helps if you can provide her with a small portfolio of pictures after the session. Good Luck.
Are cameras allowed in Disneyland?
Yes, you can bring your camera to Disneyland and even take pictures during many of the rides. They are very good about letting you know where you can/can't take pictures (basically it's fair game unless there is a "no" sign.). It's not like Universal where you can't take pictures of anything.
What do you call a picture that was taken with an infrared camera?
It is called a Thermogram, or a Thermal Image
In photography what does contrast mean?
Contrasting Images in poetry is when the writer portrays one image or scene then portrays a different image/scene. This poem written by Matsuo Basho is an example of contrasting images, "An old silent pond... A frog jumps into the pond, splash! Silence again."
Megapixels are just one measure of a camera's quality. The quality of the lenses is just as, if not more important, in terms of picture quality. And, pixels vary a lot in quality--some are smaller than others, and result in worse picture quality.
You can find 5 megapixel cameras for $90, and others for several hundred dollars. The difference in price is due to better mechanics and better optics. A tiny plastic lens, no matter how many pixels the sensor has, will give you crappy photos. A good lens, on the other hand, can give you clear crisp photos with 2 or 3 megapixels.
And too many megapixels is not necessarily a good thing--more megapixels mean larger file sizes, which will fill up your hard drive (if you store them on your computer) quickly. 5 megapixels will give you files which will let you print 8x10 photos without a problem.
Other things which will determine how clear your photos are include:
- Proper lighting
- Lens quality
- Steadiness of camera
- Proper focus
- Proper shutter speed
- Clean sensor/lens
If you are concerned about photo quality, read some reviews of the camera you are interested in on-line, or go to a camera shop (and not an appliance store that sells camera) and talk to the staff and try out the camera.
Check out the links below for more information.
Is it legal for landlord to place hidden cameras without the tenant knowing?
It is possible to put a pinhole camera anywhere in the wall or ceiling, and the only way to find it would be to tear all the drywall out. If you don't find it after doing that, then most likely your parents have surgically embedded a device in your skull that is tracking your thoughts at this very second. Every time your ear itches, that is the device uploading its data to your parents' secret bedroom computer.
Is it illegal to have cameras in a classroom?
It is illegal to have cameras in the bathroom of any state by law. Depending on what kind of video camera you mean. A personal video camera in the bathroom is legal as long as you are not filming somebody dumping. That's just wrong. It's child pornography. Now, it is illegal to put video cameras in bathrooms for security reasons by US law. Washington may have a different law on that. Check the state site if this doesn't help.
Does camera lenses have long or short focal points?
The short focal length of a camera lens is so that the image the lens forms is small and can be focused on a piece of light-sensitive film.
Is digital photography considered digital art?
Yes it can. Architecture as a form of art dates far back in time to the temples of the Greeks, pyramids of Egypt and the stepped pyramids in South America. Many of the new buildings being designed and built are very much art. Think of the Bird's Nest Stadium built in Chin for the Olympics.
What was the first company to produce a camera?
Cameras were available using dry gelatine plates since the 1870s, but it was not till George Eastman who developed paper film in 1885, and then celluloid film, was the first simple camera produced. It was called the "Kodak", a simple box camera with a fixed lens.
Which companies make pink digital cameras?
The major camera manufacturers include (in alphabetical order):
- Canon
- Casio
- Fujifilm
- Kodak
- Leica
- Nikon
- Olympus
- Panasonic
- Pentax
- Ricoh
- Samsung
- Sony
However, they do not manufacture all their digital cameras. Often, they will put their label on a digital camera that another camera manufacturer, e.g. Sanyo, has made.
What made George Eastman want to make a camera?
his reason to make a camera was, because he thought that paintings often reflected the opinion of the painters.
However, photos showed exactly what happened. that's why.
Also, Eastman thought that most painters did not get every single detail. The camera did.
Are surveillance camera's legal in new york classrooms?
Certainly, as long as students know they are there.
Why are silver compounds used in photography?
Silver is used in film media because it tarnishes better than other materials.
Tarnish is the process of oxidation, where a metal turns from some some shiny color to a darker non-shiny color.
Three Examples of Tarnish:
- Gold: Starts a bright shiny gold color and tarnishes to a slightly darker dull gold color
- Copper: Starts a bright shiny orange-gold color and tarnishes to a green patina color
- Silver: Starts a bright almost white color and tarnishes to a very dark grey, almost black color
Silver provides the best tonal range, from light to dark. It can capture light from pure white to pure black (or very close).
Additionally, silver tarnishes very consistently. This provides a smooth transition from light to dark on film.
How does a Pinhole camera work?
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) travels 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
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- 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
The most common type of pinhole photography is done with the aid of a shoe box. The film (use real black and white film as it is less sensitive to light and light leaks because we are talking about a shoe box here) is taped to one end of a shoe box and a small pinhole is carefully punched into the center of the opposite end of the shoe box. The box lid should be placed on tightly and sealed in place. When you handle the film, you must try to have total darkness. Practice all aspects of putting your shoe box "Camera" together in the light first. Place your finger over the pin hole before bringing into the light. Then the box is placed, usually outside on a sunny day. Point the pinhole end of the box toward something that you are interested in taking a picture of. Your subject has to be something that is stationary. The light coming through the pinhole will expose your film for you. Research the subject to help determine pinhole size and approximate exposure times to take some guesswork out your project.
How was the movie camera invented?
the camera was developed by Joseph Nicéphore Niépce in 1826. to capture instant moments in time.
How good is 10.2 megapixels for a camera?
All other things being equal, you will not notice a difference except for the larger file sizes for the same size of picture taken. If you aren't using the camera professionally, I suggest you concentrate more on features. These days, people seem more interested in big numbers (for pixel size) because it's the easiest thing to discuss around the water cooler. IMHO, anything over 6 MP is a waste unless you're getting a bargain.
If you have photographic memory then your eye functions like a camera in a way
What year was the camera invited?
Charged coupled devices appeared in the early 1970's and consist of an array of light sensitive cells arranged in a matrix etched on to a silicon chip. They were first used in astronomy applications in place of photographic plates that needed long exposure times of faint stars. They were very expensive arrays and the number of pixel elements was fairly small but,when coupled to a computer, were able to count photons and log them into a data set. This was not possible to do prior to this electronic photo plate. Kodak introduced the first digital camera in 1990 but I don't think it is possible to accurately tell what was the first. I would say a photo of a distant galaxy in about 1972 is a good guess.
How does a hologram differ from a photograph?
A photograph is a two dimensional representation of a real-life scene. A hologram is three a dimensional representation.
What is an aperture of a camera?
Original answer moved to discussion page.
The aperture is an opening within the lens whose size is controlled by a series of overlapping blades. It's sole purpose is to control the amount of light that reaches the film or digital sensor during the exposure time. Anything else, such as depth of field, is a spin off of its function.
The size of this opening is controlled by settings on the camera shutter speed/aperture dial or on the lens. Many cameras do not have the ability to "stop down" the aperture before the moment of exposure, so it is not something most people can observe. At the moment of exposure, the blades move to create an opening within the lens just before the shutter opens to control the duration that this occurs. Together, they control the exposure.
We quantify the size of this opening with F numbers. Simply put, the F number expresses how many times an aperture will fit into the focal length. Thus, in a 100mm lens, F4 means it will fit in 4x and will be 25mm in diameter. In a 200mm lens, F4 represents an opening of 50mm. This explains why longer length lenses typically have larger maximum apertures, and why the higher F number represents a smaller aperture (F16 must fit into the focal length 16x, thus it has to be smaller).
The answer moved to the discussion page, while good, was more about the effect of the aperture and really belongs in a answer to a question about depth of field.
