Tuesday, June 1, 2010

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?

In today's society, digital camera technology is becoming more common as we find cameras within work, home and leisure environments. If we compare digital cameras to traditional analogue film cameras, we can understand that digital cameras are more advanced technology. This is because with digital cameras, photos can be stored on a computer, disc or hard drive without needing to be developed, unlike a traditional cameras where all the photos on the canister had to be taken into a profession to develop in order to be able to view and store the photos. Digital cameras are also able to shoot videos.


Positives of a digital camera: Can take more photos, able to edit and delete photos, able to store photos on a hard copy, able to choose what photos you want to develop, can take photos at any time of the day, and you can instantly see the photo you have taken.

Negatives of a digital camera: There is education involved in being able to transfer photos from camera to other hardware devices, there are many small parts of the camera including batteries, memory card, usb, etc
, photos can use large amounts of space on hard drives, and if photos are stored on Cd's they can get easily scratched and damaged.

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

Cd's
Computers
Laptops
Memory cards
Emails
Printers
PlayStation
Ipods

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


The main ethical issues involved with the usage of digital camera technology are copyright and privacy issues of peoples photos. All professional photographers ensure their photos are stamped on the back with their name and company so others are unable to copy and steal their photos. Privacy of a persons photos are also another ethical issue as once they are uploaded onto the Internet, the person may have no control over their photos in terms of who can look at them, alteration and manipulation.

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

In occupational therapy practice, digital camera technology can be used in order to improve both functional independence and occupational performance. This may include taking photos of the client within their intervention to help analyse their progress, function and ability in performing a task. When occupational therapists attend home visit assessments, they may take photos of the client performing a toilet/bed/shower transfer, and/or the environment in terms of access, safety, and possible equipment that may need to be placed within the clients home, e.g. From a photo captured in the bathroom, the occupational therapist could recognise the toilet was very low for the client with a recent hip replacement, so an over toilet frame would be required to aid this persons toilet transfers. Taking photos is also required when certain types of equipment such as rails need to be installed by builders, and which they need to know where to place the equipment correctly.

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

Flickr is a website that offers photo management for people to upload and organise their photos and videos. People are able to share their photos and videos with friends, family, and other contacts that have been given permission, and in return can write comments and add tags. Flickr offers a privacy level which determines who can view your images, and a usage license so that your photos are protected. With your photos, you can make prints, posters, calenders, cards, photo books and collage products.

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

FACE BOOK!

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.

Explain what is meant by the term mega pixel

A Mega pixel is a unit of measurement which represents one million pixels — those tiny dots of color which make up an image. Mega pixels represent the resolution, or size and quality, of an image, or an image capturing device such as a web cam or digital camera. The higher number of mega pixels a camera can capture, the higher quality the images it produces will be. Casey, M. (2010). What are mega pixels? Retrieved June 2nd, 2010,from http://peripherals.about.com/od/glossaryofpcterms/g/gmegapixels.htm









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