Better Light 7 manual Limit Line, Spot Meter Reference Points, Negative Curves, Bit Tone Curves

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Limit Line

On the left side of the tone graph is a curved green line that never moves. This is the line that denotes the limit for conversion from the 14-bits/channel of the raw camera image to 8-bits/channel in the image file without skipping any values. If a tone curve is created or modified in such a way as to have the tone curve go into this area, the resulting image’s histogram may have gaps. The gaps rep- resent RGB values that are skipped as tones progress along the tone curve. These skipped RGB values may, or may not, be visible, depending on the image’s subject matter. If these gaps occur in parts of the tone scale where there are gradations, there might appear some sudden steps instead of a smooth tone transition. Skipped RGB steps will not be a problem if there are no colors in the image that fall in the area where the tone curve is inside the limit line, as shown by the image data histogram in the background of the Tone editing area. The limit line is not usually crossed in normal shooting situa- tions.

Spot Meter Reference Points

When static spot meters have been set in the prescan image, they will also be marked on the tone curve graph as small square points, to distinguish them from the round control points, with their respective color coding. The RGB values for the spot meters are displayed on the left side of the tone curve graph to aid in the curve adjustments. As brightness or contrast changes are made to the tone curve, the static meter reference points will automatically move along the curve to reflect their new positions and the RGB values will update. These features can be used to watch specific values in the image. Set a static spot meter in the prescan image on a point of interest, such as a highlight, with the Spot Meter Tool. Then, as you make changes to the tone curve, you can see the spot meter reference point move along the curve, making certain it arrives at the desired point in the tone scale on the left side of the tone graph.

Negative Curves

A curve for converting negatives to positives can be created and applied to the image by clicking on the Negative button . The tone curve will invert to correctly convert the negative scanned image into a positive image for display. A negative original scanned with a negative curve will result in a

positive image.

16-bit Tone Curves

Clicking on the 16-bit button in the Tone panel will cause ViewFinder to save the image as 16-bit per channels with the current tone curve applied. The preview display will be unaffected but the file size will be doubled. See page 54 for more information.

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Contents Large Format Digital Scanning Camera System Revision D MarchAcknowledgements Page Page Contents Lock Crop Ratio Locking BothSaving a High Bit Depth Image Audio Focusing Aid Multiple Color FocusingAltering Color Balance for Mood or Effect Limit LineExporting Notes Automatically Opening the ImageLine Time Hardware Setup Software OperationLighting Parts List Connector Identification Installing and Configuring the ViewFinder Software Getting StartedMacintosh Memory RequirementsSystem Requirements PC PC version of the software is requiredConnect the control unit to the host computer Quick Start GuideConnect the camera insert to the control unit Mate the female end of the cable with the DBTurn on the digital camera Connect the AC power to the control unitInstall the viewing overlay on the camera’s ground glass Turn on the host computerInstall the infrared blocking filter Mm thick Tungsten infrared blocking filterPut the insert into the camera Select the image capture settingsCompose and focus the image Start the ViewFinder softwareTransfer the file to the computer PrescanTake the picture View the final imagePrescanning Making a PrescanFast Prescans Cropped Prescans Super View Prescans Saving and Viewing Prescans Canceling a PrescanColor Managed Prescans Rulers GuidesImage Capture Settings ResolutionPage Line Time ISO Capture Mode Exposure LockScanning Canceling a ScanScanning to the Camera Disk Naming the Image Automatically Naming ImagesAdding Notes to Your Picture Digital Spot Metering Exposure EvaluationRGB Data Values, EV Units Determining Relative Exposure Static Spot Meter Tool Setting the Spot Meter Size Histogram Judging Overall and Spot ExposuresStatic Spot Meter Location Readings Magnify Tool Tool BarHand Tool Measure Tool Mac only Panorama ToolToneZones Tool Page Crop Mask Tool Grid ToolPage Size Panel Tab PanelsScan Area & Cropping Size of the cropped area may still be adjusted while Different unit. Example 15.24 cm x 10.16 cm at 300 pixels perLock Crop Ratio To set a specific shape for crop rectangle Clicking up or down buttons of Scan AreaLock File Size To specify an exact file size Faster Scans for Free Seconds Scan directionColor Panel Establishing Neutral Color BalanceSaving Color Balances Deleting Color Balances Changing Existing Color BalancesAltering Color Balance for Mood or Effect Reverting to a Previous Color Balance Tagging Images with ICC ProfilesTone Panel Tone Curve SelectionsSaving a High Bit Depth Image Brightness/Contrast Tone Curve Adjustments Manual Tone Curve Adjustments Negative Curves Limit LineSpot Meter Reference Points Bit Tone CurvesTone Curve Histogram Setting the EV Scale ReferenceSelecting an Output Tone Scale Saving Tone Curves Deleting Tone CurvesFocus Panel Large Focus DisplaySelecting a Focus Site Reading the Focus Displays and Adjusting Focus Audio Focusing Aid Mac only Multiple Color FocusingInfrared Focus Image File Management and Retrieval ViewFinder File Manager Adding more Notes to Your Pictures Sorting Image FilesExporting Notes Automatically Saving Files to a Folder Automatically Opening the ImageRetrieving Image Files Selecting the Retrieval Tone Curve USB controller only Deleting Image Files Hard Drive Storage CapacityMenus File MenuEdit Menu Display Menu Camera Menu Diagnostics Capture ModeClean/Park Opens the Clean/Park window to expose the CCD for cleaningAfter highlighting the desired folder, click User PreferencesAutomatically Retrieving Images Saving Files Right of the Save scan folder labelAuto Naming Automatically Save PrescansAutomatic Scan Viewing in an Application Auto File Open Auto-rotate Retrieved Files MaskGrid GuidesBaseline ISO Setting Using SoundsISO Increment Selection Time Lapse Pano SettingsUse this feature, the factory settings are adequate CropCleaning the CCD Cover Glass Appendix aManipulating Exposure Exposure AdjustmentsAppendix B Line TimeTone Curves Color Balance SensitivityLens Aperture Lighting Line Time Settings Appendix CModel 4000E-HS Resolution SelectionsAppendix D Model 6000-HS, 6000E-HSSuper 6K-HS Super 8K-HS Appendix E Status IndicatorsPower StatusPanoramic Adapter Hardware SetupAppendix F Scene PanoramaPage Rollout Panorama Object Panorama Hardware is assembled just as it is for a Rollout panoramaCamera reported error No Room Error MessagesCamera reported error Not Ready Camera reported error Conversion ErrorScsi Errors Comm returned error Camera reported error Value ErrorCamera reported error Math Error Other Errors Unknown ErrorCamera Timed Out
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