Film and digital.

[Kirbstone]

That's a Camera Obscura. With the bright Italian light such a device worked well for Canaletto certainly, among Italian perspective architecture painters. He had an image so projected onto a large canvas and it greatly speeded up his drafting up of large townscape architectural subjects.

His 'film' was the oil colours he used.

T.

[Sarongman]

If you could afford the film, maybe older style monochrome which you could process yourself, that could be great fun for experimentation. My thought is, with a firm support or a tripod, some long exposure shots to turn waves into fog effect etc. Strap a neutral density filter over the pinhole for longer exposures. I am assuming, of course, that there is some sort of a simple spring trip shutter that could be set to "time".

[Jack Williams]

Yes, that's what I thought. On a tripod for sunset etc. Big depth of field.
I'll upload a shot or two.