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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

Where must the film be placed if a camera lens is to make a sharp image of an object far away?

This varies widely depending on the camera. If you're talking a throw-away camera with a single element lens, an inch or so. If you're talking a large format portrait camera (film plate 4 x 5) the lens can be a foot away or more.

Exactly ! SLRs have the lens moved forward to allow the reflex mirror free passage (25-30mm for 35mm film) whereas my rangefinder has less than 3mm clearance between the wideangle lens' rear element and the focal plane shutter.

What is the meaning of police photography?

Police photography basically deals with forensic photography. In most cases, it deals with a scene of a crime while the term 'photography' generally mean anything that deals with pictures. Hope that helps...

What brands of camera have been used by the portrait photographer Annie Leibovitz?

Annie Leibovitz has used many camera during her long career, including the Hasselblad 6x6 medium format and the Mamiya RZ-67.

Although both cameras use the same size 120/220 roll film, the Hasselblad produces square 6x6cm images on film, while the Mamiya RZ-67 produces 6x7cm rectangular images.

To answer your question Annie currently shoots only digitally. On commercial jobs she brings along with her three different cameras and two of each. Usually she arrives with a Nikon D3, a Canon EOS 1Ds Mark III or a Canon 5D Mark II, as well as a Hasselblad H2D with a 20+ back. In her personal life she chooses to shoot with either a Leica D-Lux3 or a Canon G10.

How are computers used in photography?

Photoshop can edit in amazing ways. Also some computers (like mine) have a webcam that i can take pictures on or videos.

What was a box camera used for?

To take pictures, like any other camera. The Brownie Box camera by Kodak was one of the first mass produced ones and was named because it looked like a box. The earliest ones had to be sent to Kodak to have their film removed and replaced. They had no flash, no focus or aperature settings and worked outdoors.

When would you use a fish eye lens foe taking photos?

Also referred to as an extreme short focal length (around 15mm) the fish eye lens will gather a whole lot of image and provide unlimited depth of field. However, the distortion is so great that horizontal and vertical lines that are off the central axis are extremely bent to the point where they curve around the perimeter of the lens. Often, the image itself is a circular one.

Can you use the lenses from your minolta maxxum 7000i 35mm camera on a digital camera?

They should work on Minolta digital cameras, and possibly the new Sonys as well. Check carefully into the camera specs.

What kind of camera does a professional photographer use?

. Professionals mainly use the SLR type of digital camera and sometimes use "digital backs". As for makes, my personal opinion is to go with either Canon or Nikon cameras. .

Can you use the camera without a sim catd?

Yes you can !... The apps and hardware on the handset are not restricted by having no service. No service simply means you cannot send or receive calls, texts or data.

Who developed the camera?

I'm presuming you mean photographic camera and not the camera obscura.

It is not really a question that can be definitively answered as written. The earliest uncovered evidence of lens making dates back several centuries (from Persia, I believe), while the principle of the camera obscura (co hereinafter) dates back to about 300 B.C. The first device constructed to employ the principles was built around 1021 A.D, yet it was not even given this name until 1604. I think the earliest known reference to adding a lens to the co was written around 1568 (Daniele Barbaro), and Johann Zahn constructed a co small enough to be easily portable about 1679 to 1685, depending on what reference you cite. I do not know if he designed the lens that made this possible or simply incorporated one into his design. Therefore, this forerunner of the portable photographic camera was in existence about 150 years before the "invention" of photography. From this it is evident that the co with its lens predates the concept of photography by a long shot.

Therefore, the device used in 1826 to make the first permanent photographic image employed chemical and optical knowledge that predated it by many centuries. Perhaps it is more a question of how the lens and the camera obscura were adapted to suit the purpose of making photographs. Photography itself is a progession and adaptation of technology rather than some sort of eureka moment.

To put this in another context, we probably would not have the automobile if someone had not thought to hitch a horse to a wheeled contraption. Maybe this was the Romans, but that's another topic and I think you will get the point.

Where are photographs developed?

You are not clear on whether you mean negatives, slides or prints; manually or by machine; color or black and white. The answer could be a long, long one if it is to be meaningful as there are many steps, controls and apparatus involved. Please Google it or borrow books from the library to appreciate the depth of the subject.

What types of cameras are used in cricket match?

camera used for cricket are DSLR Cameras where it must have more FPS that is frames per second like 30fps or 60fps and lens used are zoom lens or wide lens

What is the difference between toning and dying in photography?

For info on toning, see "What is toner for in photography?"

Dying involves applying either oil based or water based dye with a very fine brush (for small areas) or cotton applicators for large areas of a print. The practice was usually reserved for adding a single element of color in a black and white print.

Which digital megapixels camera are good?

The top 5 best camcorders according to experts include the Canon VIXIA HF M52, the JVC HD Everio GZ-VX815, the Sony Handycam HDR-PJ430V, the Drift HD Ghost and the Sony Bloggie Touch. It is not possible to pinpoint one specific camcorder as each is slightly different and it depends on what you are trying to achieve, as to which one would be best for you.

What does pixel stand for in digital photography?

It is the term used when we want to check the result of a printer... dpi means: Dots per inch. more dpi means that the printing power of a printer is or the result of the print is much more clear or have a high resolution. This term is also used in visual graphics... more dpi means that the more clear image or picture on our monitor screen, so that the result would be more better.
DPI most generally refers to Dots Per Inch, a term applied to printing resolution. Specifically, it identifies the number of dots a printer can place on a page in one inch. Higher DPI means more detail and definition in a printed page.

A related term, PPI, or Pixels Per Inch, is applied to video screens. PPI and "dot pitch" both indicate how much detail can be seen on a computer monitor or TV screen. Again, high PPI (and low dot pitch) indicates more detail and definition in video images depending upon the resolution of the video device.

DPI can also refer to Deep Packet Inspection, which is applied to networks to analyze "packets" as they are routed through a network. Sometimes the packets are modified or deleted if they contain harmful computer instructions.

Related links:

https://en.wikipedia.org/wiki/DPI

https://en.wikipedia.org/wiki/Dots_per_inch

https://en.wikipedia.org/wiki/Deep_packet_inspection
DPI in computing terms means Dots Per Inch. It relates to the number of dots on each side of a 1 inch square, that are used to construct an image either on screen or on paper through a printer. The higher the DPI number - the finer the detail of the image.

Where was the video camera invented?

Not in Paris, France. (Niepce was working in a town miles south of Paris, about 150 miles in fact) The first permanent photograph was made in 1814 by Joseph -

Nicéphore niépce using a sliding wooden box camera made by Charles and Vincent Chevalier.

As another FAQ Farmer put it: The first camera was invented in St-Loup-de-Varennes, France by Joseph Niepce, a retired french army officer.

John Strognofe invented the first camera. Is that true?

Earlier 'camera obscuras' were used by, among others, Leonardo da Vinci. Some say that he invented a form of photography in about AD 1490 to fake the Turin Shroud.
the first camera was invented in St-Loup-de-Varennes, France by Joseph Niepce, a retired french army officer.the first camera was invented in St-Loup-de-Varennes, France by Joseph Niepce, a retired french army officer.^^By Andy k of alden high school.

How many pictures will a 1GB memory card hold at 10 mega pixels?

At least 6400, in all likelihood.

Megapixel (MP) count refers to the maximum resolution of the camera's sensor -- its ability to record detail. The number of images that can be recorded on a card of a given size is only indirectly related to the capacity of the card, which is measured in Kilobytes (KB) or Megabytes (MB), not MP. That will vary according to the image itself, and to the camera's settings.

For example: My Pentax K10D, with a 10.1 MP sensor and using a 4 GB card, will record approximately 821 images at the highest resolution (10 MP) and a "Fine" resolution setting. The same camera, with the same sensor and same card, will record 10,000-plus images at the lowest resolution (2 MP) and the "Low" resolution setting. Practically all cameras have this ability to change the resolution settings, and thus the sizes of the image files that are stored on the card.

So, you can see that it is only possible to answer your question in very general terms: The higher the capacity of the card, the more images you can store at whatever camera settings. And, as you can see above, even at the highest settings with a high MP count, you can take a lot of pictures!

One thing to think about: storage cards can and do fail. It is better to have two 1 GB cards than one 2 GB card, unless you plan to shoot a whole lot of video. That way if one fails, you can keep shooting and worry about retrieving the images off the other card later.

What does a copyright cost?

Nothing.

All creative works in the US are automatically copyrighted when first physically made.

There are fees to REGISTER a copyright, but registration is needed only if you anticipate a likelihood of commercial use.

The "mail it to yourself" idea suggested by a couple of other posters is sometimes called a "poor mans copyright", and has no legal value whatsoever in the US.

If a copyright is infringed, and the copyright is not registered, the only legal recourse is to have a court order the infringement stopped - no damages can be sought or awarded. If the copyright IS registered, then there can be damages. There's no 'in-between' area for stuff that's been mailed back to yourself.

Copyright law - including 'poor mans copyright' - is addressed by the US copyright office in the link below.

Who and when was the first camera invented?

The camera came in increments ... light (lens): 4th - 5th Centuries B.C. Chinese and Greek philosphers describe the basic principles of optics and the camera. 1664 - 1666 Isaac Newton discovered that white light is composed of different colors. 1727 - Johann Heinrich Schulze discovered that silver nitrate darkened upon exposure to light. 1794 - First Panorama opens, the forerunner of the movie house invented by Robert Barker. 1814 - Joseph Nicephore Niepce achieves first photographic imagine with camera obscura. However, the image required 8 hours of light exposure and later faded. 1837 - Daguerr'es first dauerroetype, the first image that was fixed and did not fade and needed under 30 minutes of light exposure. 1840 First American patent issued in photography to Alexander Wolcott for his camera. 1841 - William Henry Talbot patents the Calotype process - the first negative-positive process making possible the first multiple copies. 1843 - First advertisement with a photograph made in Philadelphia. 1851 - Frederick Scott Archer invented the Collodion process - images required only 2 - 3 seconds of light exposure. 1859 - Panoramic amera patented - the Sutton 1861 - Oliver Wendell Holmes invents steroscope viewer. 1865 - Photographs and photographic negatives are added to protected works under copyright. 1871 - Richard Leach Maddox invented the gelatin dry plate silver bromide process - negatives no longer had to be developed immediately. 1880 - Eastman Dry Plate Company founded. 1884 - Eastman invents flexible, paper-based photographic film. 1888 - Eastman patents Kodak roll-film camera. 1898 - Reverend Hannibal Goodwin patents celluloid photographic film. 1900 - First mass-marketed camera - the Browning. 1913/1914 - First 35 mm still camera developed. MARCY'S INFO: Did you also know that to this day filmmakers can't resolve the problem of car or wagon wheels going backwards in a movie? Next time you watch a movie, take a close look at the car's wheels. the camera was made in the 1600s

What was the impact of the Polaroid Camera on history?

From what I have learned it had a major impact on society of that time. If you had a photo taken of yourself, family, etc. it was a sign of wealth. This now enabled newspapers to use photography. An incredibly large impact was how photography was an entire new art form to emerge. the camera makes me happy

What cable do you use to hook up a video camera to a laptop to edit video?

Most newer cameras come with USB ports and cords to match. You might ask someone who is familiar with computer cords if your camera has a USB port, and what size plug it takes. USB ports on computers are all the same size. Also, take a look in your camera manual, or you could take it to a shop that sells equipment and find out there.

What is Movement within the picture plane in photography?

According to an online dictionary it means the act of assuming of a certain position. Photography is a very creative and popular 'art', therefore there is a lot to know about it - you can check for several books about photography on the internet is you wish.

How bright are red light cameras?

Just as a quick explanation - As a vehicle approaches an intersection the vehicle is detected with a series of in-ground loop detectors. Based on time distance calculations the speed of the vehicle is determined. The computer takes inti account the speed of a vehicle and the likelihood that the vehicle will violate the red light based on the traffic signal phasing. If the computer determines that a violation is likely then the cameras will be activated.

Another View: -OR- it operates as simply as the camera being turned on whenever the red light is lit. Then, it takes a picture of any vehicle crossing the intersection AFTER the red light has actually illumminated.