225Appendix Advisories & Additional NoticesUnsharp MaskUnsharp MaskUnsharp Mask sharpens edges withoutaffecting color balance by makingadjustments only to luminosity (bright-ness). The effect is the same asperforming Unsharp Mask with theLuminosity channel selected in theAdobe Photoshop Lab color model. IfUnsharp Mask is applied to a singlechannel, such as red, the values forab (chrominance) are used to deter-mine what points in the image are red,and Unsharp Masking applied to theLuminosity channel for those pointsonly. An intensity of around 20% inCapture NX is roughly equivalent to100% in Adobe Photoshop. No sharp-ening will be applied if Intensity is setto zero. Intensity must be set to at least1% if sharpening is to apply.Color Aberration ControlLateral Chromatic AberrationThe refractive index of the lens variesslightly with the wavelength (color) oflight. This results in changes in imagemagnification towards the edges ofthe image, producing a phenom-enon known as lateral (or transverse)chromatic aberration.Batch ProcessingBefore Using BatchProcessingTo ensure that desired results areachieved, we recommend processinga test image before beginning batchprocessing. Batch processing will applythe same adjustments to each imageselected, and cannot be used to adjustsettings separately for each image;instead, the images must be openedone at a time in order to make separateadjustments manually for each image.Error MessagesIf an invalid file name or other erroris identified while creating a batchprocess, a message will be displayed.Review the message and adjust thebatch settings as directed in themessage.
