The primary laser system to drive both, the photocathode for electron generation and the pumping of the samples, is a TiSaph laser with a pulse energy of max. 7 mJ, of which only a small fraction is needed for the operation of the photocathode. With a charge of ~100 fC per pulse high quality single shot electron diffraction images can be taken with high temporal resolution. However, even though the beam emittance is exceptionally small, the beam size at the sample has to be in the order of some hundred micrometers to reach a sufficient coherence length of some nanometer in this case. Thus, samples with a lateral dimension of some hundred micrometers and a thickness of typically below 1 micrometer are required, which provides significant challenges for the sample preparation. The electron bunch length is presently limited by the available S-band Transverse Deflecting Structure (TDS) for bunch length measurements {DOI:10.1088/1742-596/1238/1/012069|, while in simulations bunch lengths to below 1 fs have been reached {DOI: 10.1103/PhysRevSTAB.18.120102}.