Nowadays, the camera lens is more than a simple piece of glass sliding in a metal or plastic shell. They usually also have a lot of built-in electronic devices. [dan k] has just obtained such a lens from sigma, but he wants it to fully cooperate with the camera using Canon EF LENS accessories. Hacker attacks followed.
The lens discussed is Sigma 15-30mm f/3.5-4.5 ex DG, which is used for sigma camera installed with SA. It has been proved that SA bracket is actually based on Canon EF bracket, using the same communication method and having similar contact blocks. However, it uses mechanically different mounting bayonets, making the two incompatible.
[dan] purchased a damaged EF lens to provide its support, and modified it on the lathe to fit the Sigma lens. Then use a short ribbon cable to connect the PCB of the lens to the EF mounted contact. After careful assembly, the lens works normally and has auto focusing function.
This shows that some studies can reveal the possibility of hacker attacks, otherwise we may miss it. [Dan] was able to install and run his lens on a new camera. Since then, he has taken many wonderful photos with it.
Over the years, we have seen some great lens cracking, from 3D printing adapters to deformation adapters that can produce beautiful effects. If you have your own crazy camera hacker brewing, give us a line!