Better Light 7 manual Tone Curve Histogram, Selecting an Output Tone Scale

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Tone Curve Histogram

While the Tone panel is active, a histogram of the image data appears in a gray color in the tone curve graph. The shape of this histogram is different from the one in the main window because it is based on the raw 14-bit image data, not the converted 8-bit data shown in the prescan image. The tone curve histogram does not change when the Normalize Histogram option is turned on or off in the Display menu. This histogram does not change with a change in crop area but will change with tone or exposure changes.

Selecting an Output Tone Scale

The grayscale used to represent the output value scale on the left side of the tone graph can be used to change the way the tone graph is represented. By default, the tone graph is shown with dark output values toward the bottom of the graph, light values near the top. Clicking on the grayscale will change the graph to show light values near the bottom of the graph and dark values near the top. This will not invert the image. As you may note, when the scale is inverted, the curve also inverts, so the relationship of output values to input EV values remains the same; only the graph is changed.

Setting the EV Scale Reference

The zero position on the EV scale can be set to any position within the range of the camera. This is accomplished by clicking and dragging the zero point on the scale to any position, left or right, within the graph. This new position will be the reference point for the EV readout in the tone graph and the live spot meter display above the histogram in the main window. Once the zero position has been moved, it remains at the new position until moved again or ViewFinder™ is quit. When ViewFinder™ is quit, the EV scale zero point will be reset to its default position when ViewFinder™ is restarted (the EV scale zero point is not saved in the Preferences file).

When using the contrast adjustment buttons on the Tone tab panel, you can hold the Option key down and it will pivot the curve at the zero position of the EV scale.

All live spot meter readings in the prescan can be easily referenced to a particular point with this feature. Select the reference point in the prescan image and set a static spot at the point. Then posi- tion the zero point on the tone curve graph EV scale to the spot meter reference point marked by the colored square on the tone curve. All live meter readings will now be relative to the marked static spot meter. The meter can be cleared with the Clear Meter command and subsequent live meter readings will continue to be relative to the previously marked spot.

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Contents Revision D March Large Format Digital Scanning Camera SystemAcknowledgements Page Page Contents Locking Both Lock Crop RatioLimit Line Audio Focusing Aid Multiple Color FocusingAltering Color Balance for Mood or Effect Saving a High Bit Depth ImageAutomatically Opening the Image Exporting NotesLighting Hardware Setup Software OperationLine Time Parts List Connector Identification Getting Started Installing and Configuring the ViewFinder SoftwarePC PC version of the software is required Memory RequirementsSystem Requirements MacintoshMate the female end of the cable with the DB Quick Start GuideConnect the camera insert to the control unit Connect the control unit to the host computerTurn on the host computer Connect the AC power to the control unitInstall the viewing overlay on the camera’s ground glass Turn on the digital cameraMm thick Tungsten infrared blocking filter Install the infrared blocking filterStart the ViewFinder software Select the image capture settingsCompose and focus the image Put the insert into the cameraView the final image PrescanTake the picture Transfer the file to the computerMaking a Prescan PrescanningFast Prescans Cropped Prescans Super View Prescans Color Managed Prescans Canceling a PrescanSaving and Viewing Prescans Guides RulersResolution Image Capture SettingsPage Line Time ISO Exposure Lock Capture ModeScanning to the Camera Disk Canceling a ScanScanning Automatically Naming Images Naming the ImageAdding Notes to Your Picture RGB Data Values, EV Units Exposure EvaluationDigital Spot Metering Determining Relative Exposure Static Spot Meter Tool Setting the Spot Meter Size Judging Overall and Spot Exposures HistogramStatic Spot Meter Location Readings Hand Tool Tool BarMagnify Tool Panorama Tool Measure Tool Mac onlyToneZones Tool Page Grid Tool Crop Mask ToolPage Scan Area & Cropping Tab PanelsSize Panel Different unit. Example 15.24 cm x 10.16 cm at 300 pixels per Size of the cropped area may still be adjusted whileClicking up or down buttons of Scan Area Lock Crop Ratio To set a specific shape for crop rectangleLock File Size To specify an exact file size Seconds Scan direction Faster Scans for FreeEstablishing Neutral Color Balance Color PanelSaving Color Balances Altering Color Balance for Mood or Effect Changing Existing Color BalancesDeleting Color Balances Tagging Images with ICC Profiles Reverting to a Previous Color BalanceTone Curve Selections Tone PanelSaving a High Bit Depth Image Brightness/Contrast Tone Curve Adjustments Manual Tone Curve Adjustments Bit Tone Curves Limit LineSpot Meter Reference Points Negative CurvesSelecting an Output Tone Scale Setting the EV Scale ReferenceTone Curve Histogram Deleting Tone Curves Saving Tone CurvesLarge Focus Display Focus PanelSelecting a Focus Site Reading the Focus Displays and Adjusting Focus Multiple Color Focusing Audio Focusing Aid Mac onlyInfrared Focus Image File Management and Retrieval ViewFinder File Manager Exporting Notes Sorting Image FilesAdding more Notes to Your Pictures Automatically Opening the Image Automatically Saving Files to a FolderRetrieving Image Files Selecting the Retrieval Tone Curve USB controller only Hard Drive Storage Capacity Deleting Image FilesFile Menu MenusEdit Menu Display Menu Camera Menu Opens the Clean/Park window to expose the CCD for cleaning Capture ModeClean/Park DiagnosticsRight of the Save scan folder label User PreferencesAutomatically Retrieving Images Saving Files After highlighting the desired folder, clickAutomatic Scan Viewing in an Application Auto File Open Automatically Save PrescansAuto Naming Mask Auto-rotate Retrieved FilesGuides GridISO Increment Selection Using SoundsBaseline ISO Setting Crop Pano SettingsUse this feature, the factory settings are adequate Time LapseAppendix a Cleaning the CCD Cover GlassLine Time Exposure AdjustmentsAppendix B Manipulating ExposureLens Aperture Color Balance SensitivityTone Curves Lighting Appendix C Line Time SettingsModel 6000-HS, 6000E-HS Resolution SelectionsAppendix D Model 4000E-HSSuper 6K-HS Super 8K-HS Status Status IndicatorsPower Appendix EScene Panorama Hardware SetupAppendix F Panoramic AdapterPage Rollout Panorama Hardware is assembled just as it is for a Rollout panorama Object PanoramaCamera reported error Conversion Error Error MessagesCamera reported error Not Ready Camera reported error No RoomOther Errors Unknown Error Camera reported error Value ErrorCamera reported error Math Error Scsi Errors Comm returned errorCamera Timed Out
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