Getting the most out of a compact digital
Daniel posted a blog entry with a lot of valuable tips about shooting with the limitations of using a digital compact camera - most of it is common sense, but if you’ve never thought about any of it, it’s definitely worth a quick read.
Some of the points he brings up is using a low ISO to reduce noise, using custom white balance, using program mode, getting in close, and take a lot of pictures, to increase the chances of getting the shot.
The man’s got a lot of great points, although for one of them, I don’t quite agree:
When your camera is fully zoomed out, it is at wide angle and will cause some distortion in your subject. If you are taking portraits, you definitely will want to step back and zoom in so that your kid, or spouse, does not look like a chipmunk.
While I am happy to admit that most compacts aren’t great for barrel and pincushion distortion, it’s a minor problem, compared to light loss. Cheap lenses, and especially those in digital compacts, lose an incredible amount of light once you start zooming in.
In fact, my Canon Digital Ixus S500 (also known as the Digital Elph in the US) has a f/2.8-4.9 lens over a 3x zoom. That means that while you get f/2.8 at full wide-angle, you lose nearly two stops of light just by zooming in. Most of the time, it ain’t worth it - leave your camera fully zoomed out, and rather crop the image to size!
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This entry is © Haje Jan Kamps / Photocritic.org, and was posted on Thursday, April 13th, 2006. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
#1 - April 13th, 2006 at 02:15
Hey, thanks for the reference. You are quite right about the light loss, and it generally meant that I had to take portaits in the sun, or at least on a bright day.
#2 - April 14th, 2006 at 00:28
Is it really better to crop than zoom on a 3x zoom with about 1.6 stops of light loss? When zoomed out all the way, you get 3 times as much light, but you’re only interested in the middle of the picture (1/9th of the frame), so you end up with about a third as much light being used.
Do an experiment: take the picture zoomed out all the way, at ISO 100. Take the same picture zoomed in all the way, at ISO 400 (to more than compensate for the light loss). Crop and enlarge the ISO 100 picture to the size of the ISO 400 picture. Optionally perform some noise reduction on the ISO 400 picture. Which looks better?
#3 - April 14th, 2006 at 08:27
Evin: Very good point. Personally, I only photograph for the web nowadays, so I hardly ever need the resolution.
It doesn’t quite change the fact that “if the picture ain’t good enough, you ain’t close enough” :)