"A new technology is rarely superior to an old one in every feature."
Digital cameras have introduced the notion of 'disposable' photos, where 100's are taken and only the best ones kept. This is different to traditional film cameras, where usually every photo is valued and printed. They are more treasured because they are not so readily available. More time goes into taking a photo with a film camera, as there is often only one chance to get it right.
Digital technology also allows for photoshopping, keeping the best photos and having photos instantly without having to wait for film to be developed.
With digital cameras, photos can be stored on the infromation card with the camera, or on an external hard drive. They can be displayed using many methods and technologies such as webcams or websites such as flickr or facebook.
Photos are saved as JPEG files, which condense the information so it can be sent. This reduces the quality of the image, and the more you compress it and more data you store, the lower the quality.
Some ethical issues around digital cameras are photos being taken without knowledge, and the uses those photos may be used for. A photo of a person could be taken without their knowledge, then displayed on the internet without their consent. On some websites, once you upload a photo, you lose all rights to future uses of that photo to the owners of the website.
An ethical issue is that we all have a responsibility to those who's image is being used, to gain informed consent from them.
Digital images could be used in occupational therapy to capture specific positions of clients when completeing activities, to be sent to other health professionals to gain their opinion on any questions the OT may have.
Flickr.com is a website for storing and displaying photos. It also hosts videos. There are 2 types of accounts on flickr, Free and Pro. With a free account one has 100MB of image space per month, plus 2 videos may be uploaded a month. With a Pro account, one has unlimited images and video uploading per month. On this website you can share photos with others who also have a flickr account. Another photo storage website which offers a similar service to flickr is www.myphotoalbum.com
Digital zooms on cameras crop the image, then enlarge the cropped image to fill the frame again. This differs to an optical zoom, which keeps the clarity and pixel size and number the same as when you started. A megapixel is how many squares of an image that receive light per image. There are more green than any other colour becuase most things we see are in shades of green. 1 megapixel = 1 million squares.
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