Friday 7 February 2014

Focusing on an iPad

 
Before you ask, no, this isn't mine. Being a Luddite I haven't succumbed. But I wanted to check out what I'd been reading about the short focal length of the camera. The optics seemed very good but the focal length looks to be about 1cm. Now focal power = 1/focal length. 1/0.01m is 100 Dioptres. That's a strong lens. I'll need to work out how strong my glasses are but they are diverging lenses so it won't be as easy to work out.