Franke's widefield pinhole camera
- Franke's widefield pinhole camera
Franke's widefield pinhole camera is a variation of the common pinhole camera: a hemisphere of glass (or any refractive, transparent material) is placed touching the pinhole to change the field of view of the pinhole.
External links
* [http://www.pinhole.com/archive/371 Matt Young, "The Pinhole Camera: Imaging without Lenses or Mirrors"]
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