Leonardo 4x5 pinhole camera

[David Michael Bigeleisen]

I just purchased a used Leonardo 4x5 pinhole camera with a 6" body. I haven't tried it yet.

Does anyone know the f stop for the pinhole so that I can get correct exposures?

Thank you in advance.

David Michael Bigeleisen

[Larry H-L]

I bought an 8x10 Leo years ago, and the diameter, in inches, was labeled on the pinhole metal.

Have you looked inside?

Or e-mail the folks at pinholeresource.com, makers of the camera. Good people.

[Otto Seaman]

probably f/256 I kind of remember....