Foto-Cheatcard: simple chart explained the photographing effect of F-number, Shutter Speed and ISO settings

This is an amazing diagram that can let everybody instantly understand the photographing effect of the various F-number (aperture ratio), Shutter Speed and ISO settings.

These 3 settings are the basic of photography. With this Cheatcard and some practices with the camera, new learners can soon master the trick of using their DSLR.

This Foto-Cheatcard is from a German photography blog called Hamburger Fotospots. You can click here to download its latest version in both PDF and JPG format.

Make your Windows PC into WiFi hotspot with open source Virtual Router

Have you been to a place (such as hotel room, meeting room, training room, etc.) where no WiFi service is available, and instead LAN connection is available for Internet access, and you need to connect a number of your gadgets (such as handphone, tablet, etc.) to the Internet?

With the Virtual WiFi and Wireless Hosted Network features introduced in MS Windows 7 (also available in its successor Windows 8 as well), you are able to make your laptop or PC with wireless network card into a WiFi hotspot to share its Internet access with other WiFi connected devices (computer, handphone, tablet, printer, camera, etc.)

Virtual Router by Chris Pietschmann is a small Windows application that make use of this Virtual WiFi and Wireless Hosted Network features in Windows 7 and above, to provide a very simple and fool proof way for you to make your laptop (or PC with wireless network card) to be the WiFi hotspot. It is open source and free for download and use under Microsoft Public License (Ms-PL).

With Virtual Router, you can wirelessly share any Internet connection (WiFi, LAN, Cable Modem, Dial-up, Cellular, etc.) of your computer with any WiFi device (Laptop, Smart Phone, iPod Touch, iPhone, Android Phone, Zune, Netbook, wireless printer, etc.) These devices connect to Virtual Router just like any other WiFi access point, and the connection is secured using WPA2 encryption.

This small application is so easy to use that, you just need to define your desired SSID and password, and select the network interface to share the Internet access, then click the Start Virtual Router button.

Connected devices will be shown in the Peers Connected panel.

The device will be connected with WPA2 data encryption, and get a DHCP assigned IP address.

Click here to go to the download webpage of Virtual Router.

10 things you should never say during presentations

Mr. Boris Veldhuijzen van Zanten shared in his blog about the 10 things you should never say during presentations, which I found is very inspiring.

Here are the 10 no-no, and I believe most of us had said some or all of such sentences in our presentations before. Watch out!

• I’m very jet-lagged / tired / hungover
• I’ll get back to that later
• Can you hear me? Yes you can!
• I can’t see you because the lights are too bright
• Can you read this?
• Let me read this out loud for you
• Shut off your phone / laptop / tablet
• No need to write anything down or take photos, the presentation will be online later
• Let me answer that question right away
• I’ll keep it short

Why Boris thinks that those sentence shouldn't be said during presentation? Click here to read the source article in his blog to find out more.