sample 44 brown cloth (what's the right name for this one?)
anisotropic

first checked robot calibration
for an unknown reason, communicating with the robot failed.
i turned the robot off and on and then everything worked again
measured the paramters for theta (pitch) again. found deviation 
of one degree. entered new values, now it's better, but i'm not 
sure it will remian better for the next sample as well. I think 
a systematic error of about one degree and a non systematic 
error of a few tenth of a degree is realistic.

aperture: 1 tick before 11

zoom: at 1 tick above 60, what we used to have all the time.
NOTE: with tick I mean the thick ticks, you have two of these 
between 60 and 90, not the thin ticks!! This may be zoomed out 
quite a bit but since we're gonna rotate this to 45 degrees, 
this is probably better

parameters: z=360 p=18 l=162

roll angles: 90 and 45. The difference is not as strongly 
visible as with the other anisotropic samples measured so far, 
however there is a difference visible.

WARNING: The images contain a lot of coloured stripes which is 
a Moire effect (that's what we call it here at least). It's a 
property of cameras that some criss cross patterns show this, 
you can see it on TV often if somebody wears clothes made from 
the same kind of cloth as this sample. So this data may not be 
very useful, but I continue anyway.

I looked at the gray version of some images and the stripes 
disappeared so it may not be so bad after all. Nevertheless the 
effect is also visible on the black and white TV so it is still 
there.