You’ve seen the dreaded demon-eye effect that occurs when the camera flash bounces off the eye of a person or pet. An otherwise wonderful picture can be ruined by this.

Technically, this is called red-eye and is caused when the pupil of your subject’s eye is wide open and the light from the camera’s flash reflects off the subjects retina. In people, the color ends up red; in pets, the color is often green.

Many photo editing programs include a red-eye correction filter, but this may not allow your photograph subject to appear “normal. These filters also do not work on the green effect produced in a pet’s eyes. Photo stores sell pens that are used to clear up red-eye, but again they are not always natural-looking and do not work on the green. The best thing is to prevent the demon-eye effect from the start.

It is rare to find a digital camera that does not come with a red-eye reduction feature. This feature can be turned off or on. It is best left on in all circumstances other than direct sunlight. The red-eye reduction feature works by flashing a short burst of light at your subject before you snap the picture. This burst of light causes the subject’s pupil to close and makes it less likely for the camera’s flash to reflect off the retina. This in turn reduces the chance of red-eye.

It also helps to direct the flash of your camera so it does not directly hit your subject’s eyes. Bouncing the flash off a nearby wall or other object will soften its effect and reduce the chances of this unwanted malady. Between bouncing the flash and using your digital camera’s red-eye reduction feature, your little angel, whether human or animal, will have eyes that don’t glow.

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RSS is an abbreviation that has evolved into the following, depending on their versions:

RDF Site Summary (also known as RSS 0.9; the first version of RSS)

Rich Site Summary (also known as RSS 0.91; a prototype)

Really Simple Syndication (also known as RSS 2.0)

Today, RSS stands for ‘Really Simple Syndication’, and it has the following 7 existing formats or versions:

0.90 0.91 0.92 0.93 0.94 1.0 2.0

RSS tools refer to a group of file formats that are designed to share headlines and other web content (this may be a summary or simply 1 to 2 lines of the article), links to the full versions of the content (the full article or post), and even file attachments such as multimedia files. All of these data is delivered in the form of an XML file (XML stands for eXtensible Markup Language), which has the following common names:

RSS feed Webfeed RSS stream RSS channel

They are typically shown on web pages as an orange rectangle that usually has the letters XML or RSS in it.

RSS feeds can be used to deliver any kind of information. Some of these ‘feeds’ include:

Blogs feed - each blog entry is summarized as a feed item. This makes blog posts easier to scan, enabling ‘visitors’ to zoom in on their items of interest.

Article feed - this alerts readers whenever there are new articles and web contents available.

Forum feed - this allows users to receive forum posts and latest discussion topics.

Schedule feed - this allows users (such as schools, clubs, and other organizations) to broadcast events and announce schedule changes or meeting agendas.

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