Tuesday, 21 August 2012

Comparison with film photography


Advantages and disadvantages of consumer digital cameras

The primary advantage of consumer-level digital cameras versus film cameras is that digital cameras eliminate the need to purchase photographic film, hence potentially saving the digital camera owner money on film purchasing costs, processing costs, etc. Also, the consumer avoids the need to return to the site of a photograph to re-shoot a poor exposure, because the LED display panel on the back of most digital cameras immediately shows the image.
Another advantage is almost every digital camera has a video mode, and the most recent digital still cameras offer video mode with HD capability.
Disadvantages of consumer-level digital cameras versus higher-level digital cameras include the fact that the sensor size (image sensor format) on most consumer-level digital cameras is significantly smaller than the sensor size on the more expensive, "prosumer" or professional-level digital cameras, which translates to lower image quality than is produced by a camera with a larger sensor size.
Another significant disadvantage of many consumer-level digital cameras as compared with prosumer and professional-level digital cameras (as well as the majority of film cameras) is the long delay time between when the shutter release button is pushed and when the photograph is actually taken. To many, this is a major frustration and limitation since this problem makes the capturing of moving subjects largely impractical.
A disadvantage is the video modes have very poor focus in low-light situations. Many digital cameras from 2007 to 2011 do not offer a low-light mode for their video function.
Another disadvantage of the video modes of digital cameras, is the image-stability function does not operate while the subject is being filmed. Many digital still cameras have offered the image stability function solely as an editing tool during post-production (after the video has been made.) Whereas image stability is intended to compensate for camera shake, in an editing function, it distorts the image by cropping the image to counter-act the camera shake. Conversely, the image stabilization offered on video cameras in 2012 functions while the video is being created, eliminating the need for post-production edits, which harshly crop the image.

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