If by "poor quality," the reference is to the washed out, somewhat spotty look of the print, please be aware that this was deliberate. Cinematographer Matté had accidently opened a can of exposed film, and when Dreyer saw the result, he was delighted. It was just the effect he had been looking for.

This film was originally shot as a silent. It was only later half-dubbed with voice-overs. Again, however, like the fortuitous "damage" to the print, the sparse and somewhat vague, even incoherent, dialogue contributes to the sense of dislocation which, I believe, is one of the great virtues of this genre masterpiece.