In the following articles you can discover some useful information about photometry. In order to generate accurate and reliable data in the long run, there is a lot to consider: On the one hand you have to make sure that the instrument you are using works correctly. On the other hand, as with other techniques in the laboratory, the "devil is in the detail" applies to photometric applications as well. How to avoid errors and how to perform a meaningful troubleshooting with helpful tips and tricks is the most important topic here. In addition, you will find a look back into the history of photometry at Eppendorf.