Better Light 7 manual Focus Panel, Large Focus Display

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Focus Panel

This digital camera system provides an extremely accurate method of verifying correct image focus after the device has been inserted into the view camera.

Focus can be checked and adjusted at any point in the image, using data from the CCD image sensor itself.

While this method is no substitute for proper setup of the view camera’s tilts and swings before installing the insert, it can later compensate for any camera “sag” caused by the weight of the insert, or for any error between the position of the ground glass and that of the CCD image

sensor.	Focus tab panel with only the green channel in use.

Since digital focus veriﬁcation is done at the working aperture for the scan, any focus shift caused when stopping down the lens can also be eliminated.

To utilize digital focus veriﬁcation, ﬁrst take a prescan of the subject, preferably with a reasonably proper exposure and approximate focus. After any prescan, click on the Focus tab panel, located on the main control window. After entering this panel, indicate where the CCD should be positioned by clicking in the appropriate location in the preview image area. A small rectangle will appear as a marker at the selected location (this marker can be repositioned as necessary by simply clicking in the

new location). After a location has been marked, click the button in the Focus tab panel. This will position the CCD at the indicated location, and begin displaying focus information. Focus data is displayed in both graphic and numeric form; by rocking the view camera’s focus adjustment, the best focus can quickly be determined. This system is so accurate that in many cases, it is possible to selectively focus on each color in turn, and in subsequent scans demonstrate that the selected color is indeed sharpest (even when using apochromatic lenses). After focus has been veriﬁed at one or more

sites, click the button or click on any other tab panel to end the focusing task and return to normal operation.

Large Focus Display

To aid in using the Focus panel at a distance from the computer screen, click on the Zoom button. This will cause a large graph display to appear. The same information present on the small graphs

in the Tone panel will be shown in the large display window. Clicking the Stop button will close the zoomed focus window.

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Contents Revision D March Large Format Digital Scanning Camera SystemAcknowledgements Page Page Contents Locking Both Lock Crop RatioAltering Color Balance for Mood or Eﬀect Audio Focusing Aid Multiple Color FocusingSaving a High Bit Depth Image Limit LineAutomatically Opening the Image Exporting NotesLine Time Hardware Setup Software OperationLighting Parts List Connector Identiﬁcation Getting Started Installing and Conﬁguring the ViewFinder SoftwareSystem Requirements Memory RequirementsMacintosh PC PC version of the software is requiredConnect the camera insert to the control unit Quick Start GuideConnect the control unit to the host computer Mate the female end of the cable with the DBInstall the viewing overlay on the camera’s ground glass Connect the AC power to the control unitTurn on the digital camera Turn on the host computerMm thick Tungsten infrared blocking ﬁlter Install the infrared blocking ﬁlterCompose and focus the image Select the image capture settingsPut the insert into the camera Start the ViewFinder softwareTake the picture PrescanTransfer the ﬁle to the computer View the ﬁnal imageMaking a Prescan PrescanningFast Prescans Cropped Prescans Super View Prescans Saving and Viewing Prescans Canceling a PrescanColor Managed Prescans Guides RulersResolution Image Capture SettingsPage Line Time ISO Exposure Lock Capture ModeScanning Canceling a ScanScanning to the Camera Disk Automatically Naming Images Naming the ImageAdding 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 Judging Overall and Spot Exposures HistogramStatic Spot Meter Location Readings Magnify Tool Tool BarHand Tool Panorama Tool Measure Tool Mac onlyToneZones Tool Page Grid Tool Crop Mask ToolPage Size Panel Tab PanelsScan Area & Cropping 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 Deleting Color Balances Changing Existing Color BalancesAltering Color Balance for Mood or Eﬀect 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 Spot Meter Reference Points Limit LineNegative Curves Bit Tone CurvesTone Curve Histogram Setting the EV Scale ReferenceSelecting an Output Tone Scale 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 Adding more Notes to Your Pictures Sorting Image FilesExporting Notes 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 Clean/Park Capture ModeDiagnostics Opens the Clean/Park window to expose the CCD for cleaningAutomatically Retrieving Images Saving Files User PreferencesAfter highlighting the desired folder, click Right of the Save scan folder labelAuto Naming Automatically Save PrescansAutomatic Scan Viewing in an Application Auto File Open Mask Auto-rotate Retrieved FilesGuides GridBaseline ISO Setting Using SoundsISO Increment Selection Use this feature, the factory settings are adequate Pano SettingsTime Lapse CropAppendix a Cleaning the CCD Cover GlassAppendix B Exposure AdjustmentsManipulating Exposure Line TimeTone Curves Color Balance SensitivityLens Aperture Lighting Appendix C Line Time SettingsAppendix D Resolution SelectionsModel 4000E-HS Model 6000-HS, 6000E-HSSuper 6K-HS Super 8K-HS Power Status IndicatorsAppendix E StatusAppendix F Hardware SetupPanoramic Adapter Scene PanoramaPage Rollout Panorama Hardware is assembled just as it is for a Rollout panorama Object PanoramaCamera reported error Not Ready Error MessagesCamera reported error No Room Camera reported error Conversion ErrorCamera reported error Math Error Camera reported error Value ErrorScsi Errors Comm returned error Other Errors Unknown ErrorCamera Timed Out