wednesday feb 21
sample 54 wood 1 (the oldest piece with straight vertical lines)
anisotropic

aperture: as before 1 tick before 4 again a dark sample
so a wide open aperture, sacrificing some sharpness in some 
images
zoom: as before
roll angles: 87 -3 (because wood is not glued straight on the 
holder)
parameters z=330 p=19 l=173

a bit to my surprise this wood contains quite some specularities
it's also not homogeneous, for instance in the upper right 
corner it's darker. 

didn't take millimeter picture cause it's completely white