![](https://www.hifi-im-hinterhof.de/blog/wp-content/uploads/2016/10/hifi-im-hinterhof-berlin-projektor-kalibrierung-raphael-vogt-2016-768x432.png)
After our projector calibration offer went down very well last year and seeing that AV-Consultant Raphael Vogt will be returning to the upcoming Lange Nacht der Ohren, we decided to repeat last year's offer. Appointments are available on request on the 4th and 5th November 2016.