I can't get a stochastic pattern with high pattern quality across the whole sample

[[Ph...]]

Hi, 

I am currently setting up an ARAMIS 12M system and came across this Problem. It seems like the System is only able to find a sufficient pattern quality on the "left" side of the sample, even if i rotate the sample by 180° the software doesn't like the (now) right side of my sample. (pictures below)

I have already checked all the settings (distance, aperture, focus, light) and repeated the calibratrion with a good calibration deviation result.

Did anybody else ever came across this problem or has any idea how to solve this? Thanks 🙂

 

Musterqualität 27_10_22.bmpMusterqualität 180° rotation 27_10_22.bmp

 

Edited October 31, 2022

[[Ph...]]