Quick hands on with Canon 50D

Last night I went to a Canon sponsored seminar at Adorama to see the latest DSLR, 50D. I spent about 30 minutes in total playing with it along with various lenses, 70-200 f4 IS, 24-105 L, 24-70 L, 18-200 IS. Here are the features that really tempting me to upgrade from the old, trusty 10D:

Focus
The 9 points focusing is much better than the 10D since all of them are cross type. Even in the dim light of the room, the 50D latched onto sharp focus easily with no hunting. I even tried it on uniform colour wall in the dark corner and the 50D focus with no problem.
Continuous Drive
6.3 fps! Way faster than the 10D's 2.5 fps. And this is with 15 MP both RAW and JPEG, with 17 RAW and 60 JPEG buffer. This is the main feature that would be hugely useful for me, even if only for the once a year surf photographing session I go with Dan.
High ISO Performance
The new CMOS chip and DIGIC 4 processor allows much less noisy photo in high ISO setting, when compared against the 10D, but not 40D. The noise level at 3200 on 50D is approximately the same as 800 on 10D. 2 stops higher! And 12800 is still usable but quite noisy.
LCD and LiveView
The 3" VGA screen beat the crap out of the 1.25" screen on 10D. The LiveView on the LCD looks cool but I doubt I would use it often. What I find useful would be to see LiveView on the computer screen using the USB remote control connection.
Menu
Much better menu system and easier to use, thanks to the large, high resolution LCD. The joystick helps too.
Viewfinder
Nothing special here, apart from it being noticeably brighter than 10D's.
A more detailed review is now up on DPReview.com

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PowerShell rescues wedding photos

One of my friend reached out to me last week for help. The photographer she hired for her wedding had gone bankrupted. Since she has not gotten the album now she can't even get her wedding photos in either prints or digital form. All she has access to is the photographer's web site where the people can order prints from. She was hoping that I can somehow retrieve all the photos (~1220) from the site so that at least she would have digital copies of her wedding photos.

After poking around the site a bit, I found out that I was in luck. Sort of. All the photos are accessible but only in low resolution (500 x 366). But more importantly for me, the site developer had opted to have a nice AJAX interface and for some reason decided to include all the image URLs in the page!
So a plan of action quickly formed in my head:
1. Download the page source
2. Extract the image URLs from all the HTML/Javascript code
3. Download all the images, one by one
Initially I want to try out Automator on my Mac and see how easy it would be to do this, since this is exactly the type of repetitive tasks Steve Job told us Automator  is perfect for! Unfortunately after poking around for 30 minutes, I quickly came to the conclusion that Automator is woefully inadequate for this task. So I turned to PowerShell on my Windows VM instead. Having used PowerShell 2.0 CTP a lot in my last project, I was able to quickly develop a script that extracts URLs from the page source, download the file, and save it to disk. In fact, the most time consuming part is to figure out the regular expression for URL extraction!
From start to finish, it took me around 90 minutes to get all the photos downloaded. If I didn't waste time with Automator and better at regular expression I think I can do it in 15 minutes!
Now my friend can have her wedding photos. She may not be able to print them out, but at least she can view them on a computer screen.

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Tennis photos

Last Monday I brought along my camera to my weekly tennis match. My friend Dan took some photos of me while I played my match. I was going to return the favour during his match but I played a double match instead 🙂 I guess I'll have to photograph him next time we play!

More on Flickr but this one on the left showing me in mid serve with my foot a few inches off the ground is my favorite of them all.

I think if my coach in Hong Kong all those years ago when I was a kid see these photos, he would be proud!

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QotD: I’m Good.

What are five things you're good at?
Submitted by HapaLove.

  1. Programming
  2. Tennis
  3. Photography
  4. Driving video games
  5. Target shooting

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Vox Hunt: So Meta

Show us a photo of someone else taking a photo.
Submitted by ydnar.

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