| 40.
Adobe Lightroom - Develop Module - Lens Corrections - Lens
Vignetting
Article
40 of 100
Lens
vignetting is the effect of less light falling on the corners
of the image due to the image size being larger than the circle
within which a lens performs at it's optimum. Typically it
is seen as a darkening of the corners on wide angle images
which were taken with a lens set at maximum aperture.
In order to demonstrate the effect
most easily with one image I have taken an image which has
no vignetting and have applied a number of maximum correction
settings. Using the Nikon D200 and Nikkor DX lenses, and always
being careful to not use the maximum aperture on any lens,
I have actually not run into the problem for some time.
The effects of using the Lens Vignetting
tools, Amount and Midpoint, as demonstrated below, are infinitely
variable and could be used as a creative tool as well as a
correction tool.
Default
image
Lens
Corrections - Lens Vignetting - Amount (-100) (typical effect
of lens vignetting)
Lens Corrections - Lens Vignetting - Amount (+100)
Lens
Correction - Lens Vignetting - Amount (-100) - Midpoint 0
By changing the Amount to (+100), the outer edges would be
lighter instead of darker.
Lens Correction - Lens Vignetting - Amount (-100) - Midpoint
100
By changing the Amount to (+100), the outer edges would be
lighter instead of darker.
P.S.
Please do not get upset if your personal experience and views
are different from my own. These opinions are mine exclusively
and do not reflect the views or policies of any of the manufacturers
mentioned in these articles ...... George
Mann |
