Have you ever played around with the macro mode on a camera (you know the ‘flower’ mode)? Most people have, but it’s not that impressive. Mostly because it’s not really close up. A regular macro shot will give you something like 0.5-0.7x magnification, which is… not very impressive. So lets do something about that! In this article we’ll show you one way to convert a Canon EF-S 18-55 standard lens to a super macro lens giving you from 1 to 4.5 times magnification! Then we’re talking an object of .2 inches (5mm) wide filling the whole picture! This image on the side is a long time exposure of an alligator clip up close taken with the lens. Pages 1-5 shows you the lens works and ideas behind it. Page 6 contains some sample pictures made with the lens Page 7 shows you the difference in different focal lengths (how much magnification) Page 8 demonstrates the practical differences in aperture and what’s useful Page 9 shows you in detail the different depth of fields with different apertures Link: DIY High quality macro lens out of a Canon EF-S 18-55 |
I made one of these back in December last year (link) and then I saw another interesting version from Rick.
I think this one is interesting as you can actually see that it’s a hard drive. The one I made had a different goal though – to only have hard drive parts visible. Link: Harddrive clock |
John Schuch did what I’ve been thinking about for quiet some time. To take a existing RF device and turn it into a power (AC) control.
And here’s some food for thought for you DIY’ers. How about taking one of those cute small radio controll cars and turn it into a dimmer control? The benefit of using these small cars as a build base would be that the rf reciever cards are very very small. Link: Turning a wireless doorbell into a remote control relay |
Jose Luis Garrido slaughtered an old cdrom reader… and put the lens for the laser in front of his webcam. What did he get? A DIY microscope webcam – kind of cool actually! The page is in Spanish so I also give you the option to read it through Google’s translation engine. Link: DIY Microscope webcam (Spanish) |
Have you ever felt that your keyboard was to big? I sure have and I’ve looked at these small replacements your can buy more then a couple of times. Then again, they’re expensive and are usually made for people who needs small keys to prevent RSI – not for people who just want a small keyboard. A laptop keyboard on the contrary is small an has a lot of keys so they’re more suitable for the purpose. They’re also (usually) more quiet. Lee Char got his hands on an old Compaq 486 laptop keyboard and took upon himself to educate us on how to do this by using the controller from a regular keyboard. Have a look at the laptop keyboard conversion |
Trick Vodafone to upgrade your prepay phone again and again when travelling abroadAmsterdam A Dutch anonymous reader contacted us with this scoop regarding a flaw in Vodafone’s ‘Pay as you talk’ system. He has a Dutch Vodafone prepay card, known as Pay as you talk in the UK, and went to Sweden after Christmas. As he arrived he realized that his account was empty and went to a gas station to buy some more credits.
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Bluetooth is cool but unfortunatley I don’t have it build into my laptop. There is an empty mini-pci slot available but after trying to find a good Bluetooth card to put in there without spending a fortune I simply dropped that solution. And using one of these dirt cheap USB Bluetooth dongles is a hazzle as I don’t like having that sticking out of my laptop the whole time. Well, why not build it in as Tom did! I’ve seen this kind of projects before – but this one really only uses a Bluetooth dongle plus some cables. No hub or any other electronics so it’s actually a no-brainer to get this one working. That is as long as you have the space within the laptop to hide the dongle away… Read about how he did it in Adding internal Bluetooth to a Dell Latitude |
Click click, click, click click click! Some people are immune to the sound of the clicking from a mouse, and some are not. Especially if you’re not behind the mouse, but like reading or something, then it can be very irritating. Hayma is one of these persons that don’t like the clicke-di-click all the time so he decided to do something about it. In a three page article he will take the mouse apart and modify the buttons that are responsible for generating the click. Read the further in Silent mouse – The second encounter |
So you’re sitting in a hotel room, bored, and the few channels that they give you have nothing good on – Gilligans Island re-runs, Golden Girls, and maybe a Pirates game. Nothing good, so you want to watch pay per view – a good movie or a “good” movie – but you don’t want to put up the 10 bucks to get it. Well, here’s how you can still watch it in most hotel rooms: Step 1: Get a Universal Remote. These are everywhere, so this shouldn’t be a problem. Buy one for 10 bucks if you have to. In addition to getting free pay per view, you can do a lot of things with this “hack.” For example, changing the name of the channels is possible. Instead of “FOX News” it could be “Breast Milk BreakDance.” That would be good. Source: theDamnblog.com |
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