Saturday, May 9, 2009

Tutorial Two: 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?

Pluses:
- Photos can be uploaded and shared with others
- Improved picture quality
- The ability to edit photos
- No film to take in and get developed
- All photos can be stored together on your computer or memory stick etc

Minuses:
- Not everyone is confident using them
- You can accidentally delete files
- Your computer might crash and lose the pictures
- No physical photo


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

- Stored to computer
- Stored to disk / memory stick
- Emailed directly from phone
- Pixt
- You can print them yourself
- Take memory stick in to get them printed
- Photoshop


Given the prevalence of image capturing devices, and thinking about the issues discussed in tutorial one, consider what sort of ethical issues may arise with their use:

Practise for OT:
- Client privacy- informed consent
- Possibility of theft
- Open to manipulation
- Rules around storage and access

General:
- Pictures taken without consent from the subject
- More difficult to get away with things
- You have a responsibility to the subject and anyone else associated to use images responsibly and ethically


Briefly discuss some of the ways that digital images could, or are, being used in occupational therapy practice:

- Pictures of various types of equipment are shown to clients to see if they might like it
- Picture of premises on website to make it easier for clients to find
- Promotional or awareness campaigns


Provide a brief summary of the services offered by Flickr.com:

Flickr is an image and video hosting website, web services suite, and online community platform. In addition to being a popular Web site for users to share personal photographs, the service is widely used by bloggers as a photo repository.[2] As of November 2008, it claims to host more than 3 billion images.
Retrieved May 10 2008, from http://en.wikipedia.org/wiki/Flickr


Name one other photo storage website which offers a service similar to Flickr.com

Photobucket.com


Explain what the difference is between a digital and an optical zoom

Most cameras have both optical zoom and digital zoom. Optical zoom works just like a zoom lens on a film camera. The lens changes focal length and magnification as it is zoomed. Image quality stays high throughout the zoom range. Digital zoom simply crops the image to a smaller size, then enlarges the cropped portion to fill the frame again. Digital zoom results in a significant loss of quality as is clear from the examples below. It's pretty much a last resort, and if you don't have it in camera, you can do a similar job using
almost any image editing program.
Retrieved from Participation and Occupation Tutorial: Tutorial two- Digital cameras


Explain what is meant by the term megapixel:

A pixel is a contraction if the term PIcture ELement. Digital images are made up of small squares, just like a tile mosaic on your kitchen or bathroom wall. Though a digital photograph looks smooth and continuous just like a regular photograph, it's actually composed of millions of tiny squares.
Retrieved from Participation and Occupation Tutorial: Tutorial two- Digital cameras

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