"A new technology is rarely superior to an old one in every feature." Despite advancements in new technology, they don't always out do the old technology in every way. With it will come some benefits but also some consequences. With digital cameras you need a lot more equipment than you did with old film cameras. You now need, cables, batteries, memory cards, printer, ink, and a computer. It is therefore dependent on other technology. Storage is also an issue. Having all the photos on a computer can mean that all could be lost easily when the computer breaks down. Even if backed up on CD's, these also have a life span of approximately 15 years. Through the advancement from film cameras the element of surprise is also lost because images can be seen straight away once taken. The positive thing about digital cameras is that the information can be sent back and forth relatively quick, hence instant, transferable and images can also be edited.
There are several ways in which digital images can be stored, transferred and manipulated using other communication technology. For example, images can be stored on computers and sent to other people over the internet using email systems or social network systems. Other programs such as photoshop can be used to manipulate and edit photos.
Given the prevalence of image capturing devices there are several ethical issues that may arise around their use. The need for informed consent is important to protect the subject or the subject owner's privacy. Because image capturing devices can be made very small these days, images can be taken without one's knowledge. The issue around storage is also important to consider. Who has access to the photos? Bearing in mind that images can be easily manipulated by is also another important issue to keep in mind.
Digital images could, or are being used in the Occupational Therapy practice for many reasons. Community OT's use a digital camera when doing home visits, especially when doing housing modifications so that therapists can take the images back to the office to review them and develop plans. Saves time for both the therapist and the client. Images are used for staff identification badges so that people can recognise the person as a member of staff and had accreditation.
Flickr.com allows you to upload photos for free into an account which you can share with others.
You can also create a link to flickr through blogs such as this, to take the readers to your photo collection.
Photobucket is another photo storage website which offers similar services to flickr.com.
There is a significant difference between a digital zoom and an optical zoom.
Optical Zoom - the lens changes focal length and magnification as it is zoomed. Image quality stays high throughout the zoom range.
Digital Zoom - Crops the image to a smaller size, then enlarges the cropped portion to fill the frame again. Quality is significantly lost.
The term megapixel refers to the pixel count. A pixel is one tiny square of the image. A digital image is made up of many small squares. A megapixel is 1 million of these squares or pixels.
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