In cameras with rotating shutters, using a small shutter degree reduces motion blur in each frame. The resulting image sharpness adds a ‘staccato’ effect to onscreen visual movement. The result is ‘hyper realism’.

Joan Lindsay’s novel being remade into a new film. Peter Weir’s 1975 version used ‘layers of bridal veiling over the camera lens’ to achieve its eerie end result.
Did it really happen? The Sydney Review of Books.
Chapter 18. – the final chapter, removed from the original text.