Sunday, March 7, 2010

Tutorial Two: Digital camera use and applications

Tutorial two saw us delving into the world of digital cameras and imagery. Our class got out and about around the Wintec campus with digital cameras in tow, taking snaps of various things. Here are the associated questions below.

“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?


Though digital camera technology has come a long way from the days of film loaded cameras, it is no more superior than its older counterparts. Both digital and film cameras still produce the same end product, and with technology not always being reliable, one is always willing to revert to their “old faithful” to fulfil the job required.
Digital cameras allow you to take a multitude of photographs, preview them instantly, and delete any photographs that you don’t like. They allow you to share them with family & friends instantly through uploading them onto the internet. There are no real minuses aside from the complexity of using some digital cameras, and quality of the photographs at times.

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

Images can be transferred to computers/laptops to be saved onto their hard-drives.
Images can be uploaded onto image hosting websites, such as flickr.com.
Images can be edited using software such as 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.

Publishing an image without gaining consent from the participants would be an ethical issue. The internet is not “policed” and once images have been uploaded and shared online, there is little control over who may view them.

Briefly discuss some of the ways that digital images could, or are, being used in occupational therapy practice (include reference and links to any web sites, or blogs you might come across)


Digital images are used to illustrate OT assessments and interventions. As seen in http://www.fotosearch.com/UNW430/u27587324/
They can be used as a learning aid to guide clients. As seen in http://www.jrsi.org/images/home-reaching.jpg
Provide a brief summary of the services offered by Flickr.com

Flickr.com allows you to upload photos and video clips, and store them on their site. The site lets you edit photos, organise them into themed albums, and share them with family and friends. You can also tag photos to maps so you can say where in the world the photo was taken. Flickr.com also allows you to make a range of products ranging from prints, posters, calendars, collages etc.

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

Optical zoom: Lens changes focal length and magnification as the camera is zoomed. High image quality is maintained throughout the zoom range.

Digital zoom: Crops an image to a smaller size and then enlarges the cropped image. Results in poorer quality of image.

Explain what is meant by the term megapixel

A megapixel (MP) is one million pixels. Pixels are tiny squares that make up an image.

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