Wednesday, May 26, 2010

Tutorial 2: Digital Camera Use and Applications

"A new technology is rarely superior to an old one in every feature".

Briefly discuss this statement in relation to digital camera technology. What would you consider to be some of the pluses and minuses digital camera technology holds in relation to more traditional film based cameras.

Film and digital cameras capture completely different media. They are used for similar purposes, but they themselves are completely unrelated to each other. Debating which is better is pointless as it depends on what you want to achieve.

Traditional film based cameras- Film based cameras have high photo quality with a low cost to buy the camera. The user have a variety of filters and lens which allows a wide spectrum in which to work. However film based cameras are much heavier than digital cameras and also photos must be developed before you have a chance to view the photo.

Digital cameras- Digital cameras allow the user to instantly view the picture that was just taken, you can delete any unwanted photos and you can store hundreds of photos using a memory stick inside the camera instead of having to print out every photo. Digital Photos do have some disadvantages. They are a larger up-front investment. According to DigitalCameraInfo.com camera prices range from $270-$6595, aslo digital cameras are more sensitive to shocks and drops

List some of the ways that digital images can be stored, transferred and manipulated using other communication technology

*Flickr
*Photoshop
*Coral Paint Shop Pro Photo
*Photo Studio
*Photo Scape

Consider what sort of ethical issues may arise with their use

Privacy and confidentality- Confidentiality and Privacy require that all parties must ensure that information is restricted to those who genuinely need to know. Also parties need to ensure that any indentifying information is also restricted e.g personal identifying photos

Discuss some of the ways that digital images could, or are being used in Occupational Therapy practice

Digital cameras are a huge resource for children interventions such as activities involving cards. You can even view, resize and print your own digital camera images to use as flashcards. If a photo that is meaningful to the clint is used in intervention the clinet is more likey to engage in occupation. Digital camera resources are used to teach typical kids as well as those with learning disabilities and delays.

Provide a brief summary of services offered by Flickr.com

Flickr.com is a service commonly used by bloggers. Photographs are hosted by Flickr.com and then they are embed to perosnal blogs or other social networks. Flickr.com allows users to upload and organise their photos, share and stay in touch with other users, crop, fix and edit their photos and to explore the internet.

Name one other photo storage website

Fotki- Share and print your photos

Explain the difference between a digital and optimal zoom

All cameras generally have both digital and optimal zoom.

Optical Zoom- works like a zoom lens on a film camera. The lens changes focal length and magnification as it is zoomed. The image quality stays high.
Digital zoom- crops the image to a smaller size, then enlarges the cropped image to fit the frame again. This zoom results in a significant loss of quality.

Definition of Megapixel

Manufacturers categorise digital cameras in terms of pixel count. A pixel is the total number of individual pixels that make up each image.
"A megapixel (MP) is 1 million pixels, and is a term used not only for the number of pixels in an image, but also to express the number of image sensor elements of digital cameras or the number of display elements of digital displays." http://en.wikipedia.org/wiki/Megapixel


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