  Electron tomography is a widely used experimental technique for analyzing
nanometer-scale structures of a large variety of materials in three dimensions.
Unfortunately, the acquisition of conventional electron tomography tilt series
can easily take up one hour or more, depending on the complexity of the
experiment. Using electron tomography, it is therefore far from straightforward
to obtain statistically meaningful 3D data, to investigate samples that do not
withstand long acquisition, or to perform in situ 3D characterization using
this technique. Various acquisition strategies have been proposed to accelerate
the tomographic acquisition, and reduce the required electron dose. These
methods include tilting the holder continuously while acquiring a projection
movie and a hybrid, incremental, methodology which combines the benefits of the
conventional and continuous technique. In this paper, the different acquisition
strategies will be experimentally compared in terms of speed, resolution and
electron dose, based on experimental tilt series acquired for various metallic
nanoparticles.
