Author: Yves Roumazeilles

  • All about Nikon VR

    In our series of reference technical papers, we invite you to go and check “What’s behind vibration reduction“, a very interesting description of the technology Nikon uses to reduce image blur caused by vibrations of the photo camera (or of the photographer). It is quite nicely done (cool desing from Nikon) and deeply documented. Just…

  • Earth seen from the Sky: Monster image

    Some assemble really big images. Some do it professionally, like NASA. They took a huge number of satellite images and made a 0.5 giga-pixel photo of the Earth (up to 21600×21600), known as the Visible Earth.

  • List of Sigma lenses compatible with Nikon D40

    Remember it: The Nikon D40 does not include the usual autofocus motor (for obvious cost reasons) and leaves this bruden onto the lens itself. Of course, it means that some lenses are not fully usable with the D40. Some others have no problem with the small Nikon digital camera because they include the needed motor.…

  • More details in Microsoft Live Maps

    Microsoft Live Maps is a satellite mapping application in direct competition with Google Maps and a few others. Microsoft just added a large amount of photo images taken from planes. It produces 3.8 tera-bytes of additional data. But this mostly means more details and some of the images are taken at a slightly slanted angle…

  • 5 minutes to kill yourself

    5 minutes to kill yourself

    On a Friday afternoon like today, in the office, you said that you would kill yourself if you were invited in yet another meeting. Unfortunately, the boss invited you to another meeting in 5 minutes. To be true to our word, you have 5 minutes to kill yourself. This is the task assigned to you…

  • Make your favicon easily

    Favicon‘s are those little icon files that you place at the root of your web site. They display in Internet Explorer along with your bookmarks, in Opera and Firefox on the address bar near to the address of the site you visit. When you want to produce a favicon for your web site, you probably…

  • Unidentified Flying Raw (UFRaw) for Linux

    The Unidentified Flying Raw (UFRaw) is a utility to read and manipulate raw images from digital cameras. It can be used on its own or as a Gimp plug-in. It reads raw images using Dave Coffin’s excellent raw conversion utility – DCRaw. UFRaw supports basic color management using Little CMS, allowing the user to apply…

  • Protect your PDA for 1$

    A Personal Data Assistant (PDA) like my Sony Clié (I did not update it lately, ain’t I), a Palm Tungsten E2 or a Palm Z22 includes a sensitive zone at the bottom of the screen where you can write with a stylus. But depending on your use (for example if you are an adept of…

  • Open source/free alternatives

    I’ve been telling often (too often?) that you should replace your Microsoft Office with the cheap (free!) and powerful OpenOffice desktop suite. But some of my readers wanted to know about other replacement solutions for PC applications running under MS-Windows. Here are my “Open source alternatives to popular PC software“: Title / Download Comments Firefox…