vignettingn.
1.
a. The action or process of producing vignettes, esp. in photography.
ΘΚΠ
society > leisure > the arts > visual arts > photography > photographic processes > [noun] > masking or vignetting
vignetting1842
masking1881
society > communication > book > illustration of books > [noun] > vignetting
vinetting1611
vignetting1885
1842 E. A. Poe in Graham's Mag. Apr. 201/1 The peculiarities of the design, of the vignetting and of the frame.
1885 Pall Mall Gaz. 7 May 11/2 The vignetting is, without doubt, the most difficult form of printing.
1889 Internat. Ann. Anthonys Photogr. Bull. 227 Generally, unless vignetting is desired, the background may be made of hangings of some rough material, absorbent of light.
b. attributive, as vignetting glass, vignetting mask, vignetting table, etc.
ΘΚΠ
society > leisure > the arts > visual arts > photography > photographic processes > processing and printing equipment > [noun] > mask or vignetter
mask1871
vignetter1875
vignetting mask1889
1889 Internat. Ann. Anthonys Photogr. Bull. 261 For quarter-plates and half-plates, the vignetting mask should be about three-quarters of an inch from the negative.
1892 Photogr. Ann. II. p. clxxix Vignetting Glasses.
1892 Photogr. Ann. II. 486 Revolving Vignetting Table.
2. Optics. A dimming or disappearance of an image at its edge as a result of the blocking of some off-axis rays during their passage through the optical system.
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > [noun] > dimming of image at edge
vignetting1930
1930 L. B. W. Jolley et al. Theory & Design Illuminating Engin. Equipm. xxix. 449 This vignetting effect may result in a reduction in the illumination towards the edges of the image even in the most carefully designed lenses.
1959 M. Born & E. Wolf Princ. Optics iv. 187 Designers sometimes rely on vignetting to obliterate undesirable off-axis aberrations.
1973 Optical Engin. XII. 20/2 A 1 mm diameter pinhole in 1·5 mm lead severely vignettes the field off-axis.
1974 Sci. Amer. Mar. 112/1 The diameter of the mirrors..must be at least as large as the ruled area of the gratings to prevent vignetting..and the scattering of stray light into the image.
1978 SLR Camera Aug. 64/1 The negative had good contrast and no discernible vignetting.
This entry has not yet been fully updated (first published 1917; most recently modified version published online March 2022).
<
n.1842