Small Motion Blur No Motion Blur No Deformation Full Deformation No Motion Blur Slight Motion Blur 3D Motion Blur Shutter Angle 144 Shutter Angle 72 Shutter Angle '500' The Octopus renders are rendering the motion blur in multiple Axis's, giving the effect of a 3D space, whereas the hand would only calculate the motion blur in one Axis. The 3D motion blurs renders will produce a much more deformed product depending on the blur strength, but the render has the potential to be much more realistic depending on the situation because it would be taking into account the real location blur of the object, not just a single axis. The tradeoff here would be it would take much longer to render, and whilst the final product could be potentially nicer, the render time would be increased immensely. The hand however only uses a single axis to calculate the motion blur, this is something that, whilst still increasing your rend...