Apr 25 2007

Environmental April fool?

When I read this story about Sheryl Crow’s personal measures to save the environment I had to check the date on the piece to see if it was published on April 1.

Apparently not, but perhaps it should have been.

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Apr 20 2007

Digicam versus DSLR

For those of you in the market for a new digital camera, you’ll quickly find that there are somewhere approach seven million articles on the topic of Digicam versus DSLR

Many of the articles that I’ve read have highlighted the pros of DSLRs to include things such as interchangeable lenses, RAW image mode and higher ISO settings. These are all great benefits, without a doubt, but are perhaps not the features that I find are of more value on a day-to-day basis.

I have had a number of digital cameras over the past few years, including mostly recently, the Canon Ixus 50 (digicam) and the most excellent Canon EOS 20D.

For those of you thinking about a DSLR as your next camera purchase, here’s a few observations on the features I find most useful.

  1. Shutter lag. Without a doubt the number 1 most annoying thing with digicams is the seemingly interminable shutter lag – that is, the time between pressing the button to take the picture, and the camera actually responding. While this mightn’t be such an issue if you’re into landscape photography, as anybody trying to photograph fast moving objects such a Formula 1 cars and children will know, this is a huge issue. Most, if not all, modern DSLRs (and indeed the non digital SLRs for that matter) all have little or no shutter lag. You press the button and the aperture fires.
  2. Start-up time. This is the time between turning the camera on, and actually being able to take a photo. With most digicams this process involves the lens being extended from its protective cocoon within the camera body, and feels like it takes about 15 minutes. My 20D has an advertised startup time of 0.2 seconds, but it seems even quicker. You press a button, and you’re good to go.
  3. Lots of buttons. Most digicams have minimised the number of external buttons and switches that they have. This makes them both aesthetically pleasing to look at, and superficially simple to use. However, very quickly you find that if you want to take a picture with anything but the default settings that you have to go hunting through menus to change anything. DSLRs, on the other hand, tend to have their most important features available on dedicated buttons on the camera body. While this, no doubt, looks somewhat intimidating early on, you quickly get used to it, and appreciate how much flexibility and speed (there’s that word again) it offers.
  4. Fast zoom and focus. I’ve put these under the same item, but in reality, they’re two separate issues. Speed, and indeed control of zoom is so much better because it’s a manual process on a DSLR. That is, the lens itself must be twisted or extended to zoom it. This is such an improvement in speed and control over the toggles or switches you get on a typical digicam. Focus time is generally less on a DSLR, and this fact, again, let’s you get to the “taking pictures” part of the exercise much quicker.

Tim Bray recently wrote his review of Adobe Photoshop Lightroom (all of which I would endorse), in which he states that speed is a feature. In my view, for most people, the speed of using a DSLR will be one of the greatest benefits, and will make taking photographs a much easier process (even if it doesn’t do much for the quality of the guy behind the lens).

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Apr 19 2007

US Property Price Rollercoaster

The Freakonomics Blog has an excellent little article on how the Yale economist Robert Shiller has plotted US house price data as an animated rollercoaster ride.

Check out the Google video to see the results.

Given all the recent doom and gloom we’re getting from the media about the future of the Irish property market, it might be interesting (and scary) to see a similar exercise on Irish house prices.

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Apr 18 2007

New version of Typo!

I’ve just noticed that Typo, the Ruby-on-Rails blogging engine that powers this site has become active again, after what appears to be a long hiatus.

The developers have also released a new version – v4.1. As soon as I get a chance, I’ll have to install it, and check it out. They have also started a blog, so hopefully this means a renewed level of development activity.

While I like the idea of my blogging software running on RoR, I must say that sticking with Typo has not been without its frustrations. I have often been tempted to move to the behemoth that it Wordpress. However, the killer app for me, is support for Textile. If you’re not familiar with it, check it out. You’ll never (or at least rarely) have to deal with HTML or a crappy HTML GUI again.

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Apr 18 2007

Lero is launched

One of my CSETs, Lero was officially opened yesterday by Minister for Enterprise Trade and Employment, Micheál Martin

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