Well, time to shoot my Zero Image 4x5 pinhole into space... it has a rotating disk with besides three pinholes, also three fresnel / zone plate "lenses"...
I was contemplating a pinhole for deep UV shots into the sun. Problem is that the bloody atmosphere probaby blocks the deep UV, and I don't yet have a spacecraft.
I was contemplating a pinhole for deep UV shots into the sun. Problem is that the bloody atmosphere probaby blocks the deep UV, and I don't yet have a spacecraft.
Xray telescopes use zone plate technology to focus the images so this is nothing new to astronomy. The newness of it is the wavelength involved in the imaging.