Digital Cameras - Tutorial Two

We looked at the use of digital cameras in a tutorial.

I feel the positives of use of a digital camera are:
* the speed of which you can see what picture you have taken
* the reduced cost of processing. You only develop photos that are worth keeping
* you are more likely to take additional photos which gives you a greater choice to archive the
best ones
The negatives of a digital camera are:
* you used to take more care when taking photos due to the cost of processing
* there isn't the "anticipation" and "imagination" time before you can view the photos

Digital images can be stored on PC hard drives, CD's and USB memory sticks. They can be manipulated by cropping and editing to remove unwanted images, for example, wrinkles or superfluous background material.

An ethical issue when taking digital images is if you inadvertently have members of the public in the background. You do not have their permission to publish their photos therefore you should not place these images in a public forum.

Digital images can be used to monitor progress of client interventions. It may also be useful for clients as a means of networking if is difficult to get out into the community.

The service Flickr.com offers a site to upload, store and organise photos. Other services include a blog, the availability to view others photos, genealogy searches and e mails.

Other photo storage websites similar to Flickr are Facebook and Bebo.

With a digital camera you may have the ability to optically or digitally zoom an image. Optical zoom is where the physical lens moves in and out to adjust focus in a picture. Digital zoom is the electronic brain in the camera zooms in - often a loss of quality of the image results.

The term megapixel is the unit of graphic resolution and speed at which a graphic card can display an image.