Calculated Contrast Transfer Functions for the H9000:

defocus=+20 nm

defocus=+10 nm

defocus=0 nm

defocus=-10 nm

defocus=-20 nm

defocus=-30 nm

defocus=-40 nm

defocus=-50 nm

defocus=-60 nm

defocus=-70 nm

defocus=-80 nm

Plot of zeroes in the CTF as a function of defocus

The plots show the function sin(X(u)), where X(u) is the aberration function, using the imaging parameters d=8 nm (defocus spread), Cs=0.9 mm, convergence 0.5 mrad.