Setting the Spot Meter Size | Better Light 7 instruction

Spot meter size menu.

Setting the Spot Meter Size

The number of pixels used to determine spot meter readings can be selected from the Spot Meter Size popup menu above the histogram. The choices for displaying the data are either a single pixel (1x1), or the aver- age of a square group of pixels (3x3 or 5x5). In all cases, the centermost pixel is centered within the innermost circle of the spot meter cursor

. The 3x3 group ﬁts entirely within the inner-most spot meter circle,

while the 5x5 group is about the same size as the inner spot meter circle (including the circle itself).

Use a larger spot meter size (e.g. 5x5 pixels) whenever possible, especially for critical image data measurements such as color balancing. Enlarge the preview image to accurately place the spot meter.

Averaging multiple pixels together will greatly reduce the noise and other statistical uncertainties of reading a single pixel value, yielding smoother, more accurate readings. Averaging also will tend to obscure the actual values of image features that are smaller than the group of pixels being averaged.

Use a single pixel (1x1) spot meter to accurately read the values of small specular highlights and other small image details. For the most critical readings, use the normal Prescan, not the Fast Prescan.

1x1

3x3

5x5

Spot meter diagram showing the sizes of the 1x1, 3x3 and 5x5 areas.

36

Image 36

Better Light 7 manual Setting the Spot Meter Size

Contents

Large Format Digital Scanning Camera System Revision D March Acknowledgements Page Page Contents Lock Crop Ratio Locking Both Audio Focusing Aid Multiple Color Focusing Altering Color Balance for Mood or EﬀectSaving a High Bit Depth Image Limit Line Exporting Notes Automatically Opening the Image Hardware Setup Software Operation Line TimeLighting Parts List Connector Identiﬁcation Installing and Conﬁguring the ViewFinder Software Getting Started Memory Requirements System RequirementsMacintosh PC PC version of the software is required Quick Start Guide Connect the camera insert to the control unitConnect the control unit to the host computer Mate the female end of the cable with the DB Connect the AC power to the control unit Install the viewing overlay on the camera’s ground glassTurn on the digital camera Turn on the host computer Install the infrared blocking ﬁlter Mm thick Tungsten infrared blocking ﬁlter Select the image capture settings Compose and focus the imagePut the insert into the camera Start the ViewFinder software Prescan Take the pictureTransfer the ﬁle to the computer View the ﬁnal image Prescanning Making a Prescan Fast Prescans Cropped Prescans Super View Prescans Canceling a Prescan Saving and Viewing PrescansColor Managed Prescans Rulers Guides Image Capture Settings ResolutionPage Line Time ISO Capture Mode Exposure Lock Canceling a Scan ScanningScanning to the Camera Disk Naming the Image Automatically Naming Images Adding 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 Exposures Static Spot Meter Location Readings Tool Bar Magnify ToolHand Tool Measure Tool Mac only Panorama Tool ToneZones 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 per Lock Crop Ratio To set a speciﬁc shape for crop rectangle Clicking up or down buttons of Scan Area Lock File Size To specify an exact ﬁle size Faster Scans for Free Seconds Scan direction Color 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 Proﬁles Tone Panel Tone Curve Selections Saving a High Bit Depth Image Brightness/Contrast Tone Curve Adjustments Manual Tone Curve Adjustments Limit Line Spot Meter Reference PointsNegative Curves Bit Tone Curves Setting the EV Scale Reference Tone Curve HistogramSelecting an Output Tone Scale Saving Tone Curves Deleting Tone Curves Focus Panel Large Focus Display Selecting a Focus Site Reading the Focus Displays and Adjusting Focus Audio Focusing Aid Mac only Multiple Color Focusing Infrared 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 Image Retrieving Image Files Selecting the Retrieval Tone Curve USB controller only Deleting Image Files Hard Drive Storage Capacity Menus File Menu Edit Menu Display Menu Camera Menu Capture Mode Clean/ParkDiagnostics Opens the Clean/Park window to expose the CCD for cleaning User Preferences Automatically Retrieving Images Saving FilesAfter highlighting the desired folder, click Right of the Save scan folder label Automatically Save Prescans Auto NamingAutomatic Scan Viewing in an Application Auto File Open Auto-rotate Retrieved Files Mask Grid Guides Using Sounds Baseline ISO SettingISO Increment Selection Pano Settings Use this feature, the factory settings are adequateTime Lapse Crop Cleaning the CCD Cover Glass Appendix a Exposure Adjustments Appendix BManipulating Exposure Line Time Color Balance Sensitivity Tone CurvesLens Aperture Lighting Line Time Settings Appendix C Resolution Selections Appendix DModel 4000E-HS Model 6000-HS, 6000E-HS Super 6K-HS Super 8K-HS Status Indicators PowerAppendix E Status Hardware Setup Appendix FPanoramic Adapter Scene PanoramaPage Rollout Panorama Object Panorama Hardware is assembled just as it is for a Rollout panorama Error Messages Camera reported error Not ReadyCamera reported error No Room Camera reported error Conversion Error Camera reported error Value Error Camera reported error Math ErrorScsi Errors Comm returned error Other Errors Unknown Error Camera Timed Out