Category: Tech

  • BEFSX41 – The DNS proxy works well

    BEFSX41 – The DNS proxy works well

    Good news: Even if this is not plainly written in the documentation of this fine little Ethernet router from Linksys, the BEFSX41 is fully able to operate as a DNS proxy. You just have to: Use DHCP on the WAN side (on the side of your Internet Service Provider). Configure your machines (Windows, Linux, MacOs)…

  • Inkjet inks – Pigment or dye-based? A technical comparison

    When looking into the details, you notice that the inks used for our inkjet printers are quite different from one brand to the next or from one reference to the next. Let’s check what the competing technologies are and the impact it may have on us photo users.

  • First Sony HD-DVD: Already late!

    Sony was preparing a worldwide launch of its first High Definition DVDs (on Blu-Ray discs) for the 23rd of May. They decided to move it into the future. For a good reason: “The majority of our retail base and hardware partners have requested that we reconsider this date to better coincide with the first commercially…

  • Comparison of high-end tele zoom lenses

    During my recent safari in Kenya, I got the occasion of seeing some of the best tele-zoom lenses in action (I was the one with the smallest photo equipement). This gave me a feeling about the advantages or inconveniences of these, and the idea to dig a little deeper into the issue of comparing. So,…

  • How to solve the back-focus problems of a Minolta Maxxum 7D

    How to solve the back-focus problems of a Minolta Maxxum 7D

    This is one of the biggest challenges for an amateur photographer. Some Minolta Dynax/Maxxum 7D had (and sometimes still have) problems of imprecise autofocus. Usually, the solution is to send the camera back to the Minolta (now Sony) repair shop. But there is some available data to do it by yourself. If you are not…

  • Only f/5.6 for auto-focus

    People keep asking a simple question: “why do my expensive camera fail to auto-focus when I plug my tele-lens into a 2x converter?”. Unfortunately, the answer is pretty simple. Most auto-focus cameras (digital or not) have a AF sensor limited to f/5.6 detection. If your lens is not opening more than that, the AF is…