Wooden grooves may be glued along the top of the vignetting frame, into which cards containing other apertures can be slipped.
We believe that the greater part of the vignetting done in England is by this clumsy, costly, and difficult method.
There is another way of vignetting the sky into the landscape, which is, perhaps, better and more convenient.
This restriction is known as the “vignetting” action of the entrance luke.
The next methods of vignetting are dependent on simple laws of optics.
The proper position can be found by trial; the further the card is away from the plate the softer and more gradual the vignetting.
This acts as a frame to hold the vignetting mask, which has the opening of proper size and shape.
We require also a vignetting mask suitable to the subject, with a serrated edge.
1751, "decorative design," originally a design in the form of vine tendrils around the borders of a book page, especially a picture page, from French vignette, from Old French diminutive of vigne "vineyard" (see vine). Sense transferred from the border to the picture itself, then (1853) to a type of small photographic portrait with blurred edges very popular mid-19c. Meaning "literary sketch" is first recorded 1880, probably from the photographic sense.