#Y2024 #摄影 [The Pleasure of the Pin Hole Camera](https://www.wesjones.com/pinhole.htm) [The Pinhole Camera Revisited or The Revenge of the Simple-Minded Engineer](https://www.kth.se/social/files/5c7fae6756be5bc7488edcb5/Pinhole%20camera.pdf) The focal length is approximately the wavelength of the light divided into the square of the radius of the pinhole. pinhole camera MTF如何评估？ **Pinhole Camera**  **Pinspeck camera**