Nikon 9235 Reference Manual - Page 130

Before each image Option Description Auto focus If this item is checked (the default setting), an autofocus operation will be performed as necessary before each scan. Auto exposure If this item is checked (the default setting), an for positive autoexposure operation will be performed film as necessary before scanning film positives. Auto exposure If this item is checked (the default setting), an for negative autoexposure operation will be performed film as necessary before scanning film negatives. * Once an autofocus or autoexposure operation has been performed for the current frame, the operation will not be repeated before a preview or scan. If desired, you can use the autofocus and autoexposure buttons in the scan window to ensure that these operations are performed before previewing or scanning images. If Perform auto focus when film is inserted is selected in the Scanner Extras palette, an autofocus operation will automatically be performed when a slide is inserted in a slide-mount adapter, with the result that an autofocus operation will not be performed automatically before the image is scanned. Reference: Preferences Pg. For more information on: 37 The autofocus and autoexposure buttons 57 Scanner Extras 129