Monthly Archives: October 2010

Long exposures and star trails

Posted on October 31, 2010 by Jon Ben

I have seen very few telescopes considering that I will soon have a PhD in Astronomy, and by soon I mean not soon enough. My work has never required me to actually go to a telescope. Luckily a couple of … Continue reading →

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Bike co-op

Posted on October 20, 2010 by Jon Ben

A good friend of mine asked me to take some photos for the AMS Bike co-op at UBC (where AMS and UBC are the Alma Mater Society and University of British Columbia respectively). The Bike co-op runs the bike kitchen … Continue reading →

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Understanding stops

Posted on October 19, 2010 by Jon Ben

Photographers frequently refer to stops but what do they mean and how are the scales of aperture, shutter speed and ISO related to this concept? A stop is simply short hand for changing the amount of light by a factor … Continue reading →

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Lossy jpegs: an empirical approach

Posted on October 13, 2010 by Jon Ben

People always warn that jpeg (Joint Photographic Experts Group) is a lossy file format. They usually follow that up with a joke… or a cynical comment about photographic experts choosing such a crappy file format. Jpegs do not store information … Continue reading →

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