The guys onCamera Technica’s Vimeo channel stuck a laser pointer on the top of a Canon 7D and took this video, showing just how much the camera moves when you’re holding it or taking a picture. Unsurprisingly, there’s a lot of jitter just from the tiny micromotions made by our hands. Not exactly scientific, but it’s worth watching.
Think about this the next time you’re about to take a shot. Can you set the camera down and/or operate the shutter remotely? It depends on your exposure settings, but it seems pretty undeniable that you’ll get the best sharpness if you’re not holding the thing.
Of course, it’s not a solution when you’re doing action shots and such, but for landscapes and still scenes, it’s probably worth the one-time investment for a trigger and tripod.