Getting sharp images


James Duncan Davidson, a photographer based in my part of the world, Portland, Oregon, whom I’ve never met, much less spoken to, which is rather surprising, given that there is only about two million people in the metro area, so I would’ve expected to have bumped into him and recognized him while walking around town, published a well thought out writeup on limiting motion blur in your photography, and hence increasing your haul of sharp images. It’s about getting sharp shots of any subject not going anywhere, and also of sharp motion blurs, if that makes any sense.

What struck me in the article is his explanation about the various levels of motion blur in a photo he took while driving. You can clearly see that that as the distance from the camera increases, the effect of the motion of the vehicle on the image decreases. This is quite evident in daily life on any moving vehicle, as you can see subjects near the vehicle, say a tree planted near the highway, speed past you quickly, while those further away, say a building in the distance, take longer to past. But Mr. Davidson linked that to how much the image move across the camera sensor, and hence appear like motion blur. That’s the part that I never gave real thought to.

Have a read about it here.


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