16.7.11

Olloclip three-in-one lens for iPhone 4

The age of lugging around a pricey DSLR kit just to capture casual fisheye, wide-angle and macro photos may be nearing its end -- for some of us, at least. Designed by a startup duo in California, the Olloclip was the first project featured in our Insert Coin series, and we were thrilled to learn not only that it was successfully funded, but that the device is ready to ship to both early supporters and new customers just two months later. The accessory brings the functionality of all three lenses to the iPhone 4, and it does so well enough to warrant leaving your pro kit at home on occasion -- assuming, of course, that your photographs aren't responsible for putting food on the table.

While a bargain compared to its professional equivalents, $70 is a lot to spend on any iPhone accessory, so the lens's price tag may not sit well with some users. Also, design limitations mean you won't be able to use the lens with other devices, and there's no way to guarantee compatibility with future iPhones as well. Nonetheless, we had a blast shooting with the Olloclip, and we think you will too. Head past the break to find out why.

Design and appearance

At first glance, the Olloclip only appears to include two lenses, but unscrewing the wide-angle reveals the cleverly hidden macro. To use any of the built-in lenses, simply slide the clip onto your iPhone. The fit is quite snug, so you can rotate the phone, walk around, and even slip your phone into a bag without worrying about the lens slipping off. It's also easy to reposition -- to swap the wide-angle for the fisheye, for example, just flip the entire clip around so that the lens you want to use is facing forward. As with all sub-$100 optics, it doesn't have the sturdy, metal construction of, say, a $2,000 professional-class Canon L-series lens, but for a pocketable accessory with a potentially limited shelf life, we're more concerned with the device's performance than we are with how it feels in our hands. The plastic lens mount is also less likely to damage the glass body of your iPhone 4, so we don't mind that the clip itself isn't made of metal.

Ease of use

The Olloclip is incredibly easy to use. You don't need to install any software, though it's compatible with any and all iPhone apps. And mounting or swapping lenses just takes a second, as you can see in our hands-on video. We did have some trouble using one hand to remove the wide-angle lens to expose the macro, as we were using the other hand to hold the iPhone, though unscrewing the lens while it's mounted on the phone is less of a challenge. It's also important to note that because of the iPhone's higher multiplication factor in video mode, the wide-angle and fisheye lenses will present a completely different perspective when shooting video than they do when capturing stills. Don't be discouraged, however -- the video crop factor actually eliminates much of the distortion we experienced with the wide-angle lens

Image quality

Since the optic functions simply as an extension of the iPhone's existing lens, the quality of the images it captures are limited by the sensor itself. Fortunately, the iPhone 4's camera offers a huge improvement over its predecessor, enabling the Olloclip to capture some pretty fantastic photos. Pics we shot with all three lenses were sharp and vibrant, and were clearly distinctive from those captured with the iPhone's native lens. Most wide-angle lenses suffer from minor barrel distortion, but unfortunately we found distortion with the Olloclip's wide-angle lens to be far more noticeable than what we've experienced with a wide-angle lens on a DSLR. These distortion issues are clearly visible in our gallery of sample images. As with any fisheye lens, you'll notice some significant barrel distortion here, too, but that's to be expected -- after all, that stretching is kind of the whole point of fisheye photography. [src engadget]

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14.7.11

The Importance of a Sitemap

A sitemap is often considered redundant in the process of building a website, and that is indeed the fact if you made a sitemap for the sake of having one. By highlighting the importance of having a well constructed sitemap, you will be able to tailor your own sitemap to suit your own needs.


1) Navigation purposes

A sitemap literally acts as a map of your site. If your visitors browses your site and gets lost between the thousands of pages on your site, they can always refer to your sitemap to see where they are, and navigate through your pages with the utmost ease.

2) Conveying your site's theme

When your visitors load up your sitemap, they will get the gist of your site within a very short amount of time. There is no need to get the "big picture" of your site by reading through each page, and by doing that you will be saving your visitors' time.

3) Site optimization purposes

When you create a sitemap, you are actually creating a single page which contains links to every single page on your site. Imagine what happens when search engine robots hit this page -- they will follow the links on the sitemap and naturally every single page of your site gets indexed by search engines! It is also for this purpose that a link to the sitemap has to be placed prominently on the front page of your website.

4) Organization and relevance

A sitemap enables you to have a complete bird's eye view of your site structure, and whenever you need to add new content or new sections, you will be able to take the existing hierarchy into consideration just by glancing at the sitemap. As a result, you will have a perfectly organized site with everything sorted according to their relevance.

From the above reasons, it is most important to implement a sitemap for website projects with a considerable size. Through this way, you will be able to keep your website easily accesible and neatly organized for everyone.

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12.7.11

Benefits of Text Messaging in Cellular Phones

“pls. let’s meet nw. wana c u coz I mis u so mch… etc.” This is just one typical line of what is a text message or SMS (short message service).

These days, it is one of the most liked features of the mobile phones. People from all ages especially the teenagers really like it. They consider it as the most convenient and the cheapest form of keeping in touch with the people around them. Mobile phone networks have been taking advantage of the tremendous support and patronage shown by the SMS population.

This SMS culture is not only true in a corner of the world but worldwide. It is these 160 characters that could be sent and received from one mobile phone to another which makes the world seem smaller these days. Text messaging keep family ties firm, cross distances, save friendships, deliver emergencies, campaign information… and the list goes on.

These benefits are not everything. Text messaging is also valuable to our disabled brothers and sisters around the globe. There are claims about the negative effects of text messaging like the erroneous spelling it uses. In text messaging, people use a very rare “lingo”. This is to save the number of characters. Despite these negative effects, the benefits are still undeniable.

Generally, it keeps a person updated and informed since you can carry a light device anywhere you go. For the deaf, it gives them that sense of independence and freedom. It provides them a way from the linguistic and geographic barriers. They are able to be like the common people when it comes to communicating with the people they want to keep in touch with.

As for the Birmingham Institute for the Deaf in UK, “text messaging provides them with a potentially life-saving tool to report crimes. Since 98% of the hearing impaired in the United Kingdom uses text messaging. A British police department adopted text messaging as a method of reporting crimes for the deaf community. Stations in the United States are now beginning to adopt similar practices.”

With these reasons, SMS appears to be a very beneficial innovation in these modern times. We just hope that it will not be use for abusive practices that may be a threat to the world. These benefits are things we must be thankful for.

With man’s power of the mind, innovative ideas turn out to be solutions that lead to a better, more convenient life. We do not have to run miles at all, wait for weeks, venture on messages in bottles, we have the messages right on our fingertips. In the future, SMS would grow into a more complex level but let us keep its objectives neat.

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