A camera that can look inside the keyhole to read the keys pattern!!

Currently $345 USD

The LockTech LTKS KwikSet Decoder is a WIFI enabled digital scope that when used with a compatible IOS or Android Smartphone makes decoding these locks ridiculously easy and fast!

Features:
- Decodes all current SmartKey locks (GEN 1, 2, 3, & 4) and SmartKey Control Key cylinders as well.
- A real glass mirror for the clearest image possible.
- Internal LED eliminates glare off the front of the lock.
- Position Alignment Spacers eliminate the guesswork of where you're looking at in the lock and locating individual wafers/pins during the decoding process.
- LED dimmer allows the user to increase or decrease the brightness inside of the lock.
- Live Video Display Feed, SnapShot Mode, or Video Mode.
- Rechargeable battery
- Magnetic Protective Storage Cap
- Spacers, Protective Cap, and Laminated Depth Chart are tethered for convenience.

 System requirement:

Android 4.2 and iOS 8.0 or later

https://www.internationalkeysupply.com/products/locktech-ltks-wi-fi-enabled-decoder-for-kwikset-smartkey-locks

Camera in a furniture screw

https://www.ebay.com/itm/Mini-Micro-Spy-Camera-Cam-Screw-Pinhole-Hidden-Button-Home-CCTV-Security-800TVL/262987566383

https://www.reddit.com/r/pics/comments/6rconq/camera_in_a_furniture_screw/

Another pill-cam teardown

The worlds smallest camera.

Microcamera for use on the tip of endoscopes
(Credit: Image courtesy of Fraunhofer-Gesellschaft)

At 1 Cubic MM and a resolution of 62,500 pixels this is possibly the smallest camera ever made.

Stephan Voltz, who is the CEO of Awaiba GmbH, says that "at 1.0 x 1.0 x 1.0 millimeters, this camera is as small as coarsely ground grain of salt -- the smallest camera that we are aware of."

The new microcamera was developed that the Fraunhofer Institute for Reliability and Microintegration (IZM) in Berlin, has developed together with Awaiba GmbH and with the support of the Fraunhofer Institute for Applied Optics and Precision Engineering IOF in Jena, Germany.

Read more:
Medical Microcamera the Size of a Grain of Salt Gives Razor-Sharp Images, Very Inexpensively