Better Light 7 manual Tone Panel, Tone Curve Selections

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Tone Panel

Tonal adjustments are most often used to make changes in the overall contrast range of an image, or to make changes to the placement of midtone values without affecting highlight or shadow values (or to make changes in highlight values without affecting midtone or shadow values, etc.).

Unlike most of the exposure and color balance controls discussed previously, which alter the analog signals of the CCD prior to digital conver- sion, tonal adjustments affect the digital transla- tion tables which convert the CCD’s “raw” lumi- nance data (expressed as EV on the horizontal axis of the graph) into “finished” brightness data (expressed as RGB units on the vertical axis of the graph).

Tone tab panel with the “Bent 6 stops” curve selected and static spot meters in effect.

Tone Curve Selections

ViewFinder™ is shipped with a selection of tone curves which have been preloaded into the Tone Curve pop-up menu. From these choices, each of which is fully adjustable and renameable, the pho- tographer can quickly select from a group of familiar curves to provide the contrast range and tonal- ity required for a given setup. The preloaded curves differ primarily in their overall contrast, ranging from a “straight” function that spans the entire dynamic range of the camera relatively uniformly, to functions that approximate the response curves of transparency films, to functions for specific applica- tions such as copy work. Most of the tone curves are named with their primary function followed by the approximate f/stop range for the curve (for example, “Chrome 6 stops”, a transparency simulation with a 6 stop range). The tone curves are selected from the Tone Curve popup menu at the bottom of the Tone panel. The tone graph will update to show the selected curve.

It is important to realize that changes to the Tone Curve (data translation lookup tables) often affect the camera’s expression of color, as well as its tonality. For example, when contrast is reduced with a Tone Curve change, the difference (in data values) between the bright areas and dark areas of an image is reduced, as expected, but this also reduces the difference (in data values) between the domi- nant colors and secondary colors in every colored (non-neutral) object in the image. Color saturation, which is the difference in brightness between the dominant colors and secondary colors, is therefore

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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 ImageHardware Setup Software Operation Line TimeLighting 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 Canceling a Prescan Saving and Viewing PrescansColor Managed Prescans Rulers GuidesImage Capture Settings ResolutionPage Line Time ISO Capture Mode Exposure LockCanceling a Scan ScanningScanning to the Camera Disk Naming the Image Automatically Naming ImagesAdding Notes to Your Picture Exposure Evaluation Digital Spot MeteringRGB 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 Tool Bar Magnify ToolHand Tool Measure Tool Mac only Panorama ToolToneZones Tool Page Crop Mask Tool Grid ToolPage Tab Panels Size PanelScan 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 Balance Saving Color Balances Changing Existing Color Balances Deleting 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 CurvesSetting the EV Scale Reference Tone Curve HistogramSelecting 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 Sorting Image Files Adding more Notes to Your PicturesExporting 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 labelAutomatically Save Prescans Auto NamingAutomatic Scan Viewing in an Application Auto File Open Auto-rotate Retrieved Files MaskGrid GuidesUsing Sounds Baseline ISO SettingISO 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 TimeColor Balance Sensitivity Tone CurvesLens 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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