Adobe photoshop cs2 사용자 설명서

ADOBE PHOTOSHOP CS2 

Vignetting is a defect where the edges, especially the corners, of an image are darker than the center. Chromatic 
aberration appears as a color fringe along the edges of objects caused by the lens focusing on different colors of light 
in different planes. 

Some lenses exhibit these defects depending on the focal length or the f-stop used. You can set the Lens Correction 
filter to use settings based on the camera, lens, and focal length used to make the image. 

You can also use the filter to rotate an image or fix image perspective caused by vertical or horizontal camera tilt. The 
filter’s image grid makes these adjustments easier and more accurate than using the Transform command. 

Choose Filter > Distort > Lens Correction. 

Set the grid and image zoom. As you work you may want to adjust the grid lines to help you judge the amount of 

correction to make. See “To adjust the Lens Correction preview and grid” on page 353. 

(Optional) Choose a preset list of settings from the Settings menu. Lens Default uses settings that you previously 

saved for the camera, lens, focal length, and f-stop combination used to make the image. Previous Conversion uses 
the settings used in your last lens correction. Any group of custom settings you saved are listed at the bottom of the 
menu. See “Setting camera and lens defaults” on page 353. 

Set any of the following options to correct your image. 

Corrects lens barrel or pincushion distortion. Move the slider to straighten horizontal and 

vertical lines that bend either away from or toward the center of the image. You can also use the Remove Distortion 
tool 

to make this correction. Drag toward the center of the image to correct for barrel distortion and toward the 

edge of the image to correct for pincushion distortion. Adjust the Edge option to specify how you want to handle any 
resulting blank image edges. 

Corrects images that have darkened edges caused by lens faults or improper lens shading. 

Sets the amount of lightening or darkening along the edges of an image. 

Specifies the width of area affected by the Amount slider. Specify a lower number to affect more of the 

image. Specify a higher number to restrict the effect to the edges of the image. 

Corrects color fringing. Zoom in on the image preview to get a closer view of the fringing 

as you make the correction. For more information see “Chromatic aberration” on page 219. 

Compensates for red/cyan color fringing by adjusting the size of the red channel relative to the 

green channel. 

Compensates for blue/yellow color fringing by adjusting the size of the blue channel relative 

to the green channel.