32Appendix: Nikon Scan ControlsNikon LS-2000 35 mm Film Scanner User’s GuideButtonsEject film from the SA-20 or optional IA-20 and SF-200 adaptersFocus the scanner on the center of the preview image. Clicking this buttonwith the ctrl key (Windows) or option key (Macintosh) held down allows youto focus the scanner on a point chosen by clicking anywhere within thepreview image.Zoom out to the previous view after zooming inZoom in on the current cropRotate the preview image and/or currently selected thumbnails ninetydegrees to the rightRotate the preview image and/or currently selected thumbnails ninetydegrees to the leftFlip the preview image and/or currently selected thumbnails horizontallyFlip the preview image and/or currently selected thumbnails verticallyConduct a prescan to adjust scanner exposure settingsPerform automatic contrast adjustmentOpen the Preferences dialog (see below)Abort preview or main scanPreview current slide, thumbnail, or cropScan image into host application or Nikon Scanimage window.