Table of Contents
Summary of Contents for AccuScene VF1280S Mk II
- Page 1 VF1280S Mk II High Resolution Colour Viewfinder System USER MANUAL AccuScene Cor por a t ion Lim it e d Unit 4 Dunferm line Business Cent re I zat t Avenue DUNFERMLI NE KY11 3BZ Scot land U.K. ©2005 AccuScene Corporation Ltd.
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Page 2: Table Of Contents
CONTENTS INTRODUCTION OPERATING GUIDELINES QUICK SETUP, REC 709 OPERATION VIEWFINDER SPECIFICATION VIEWFINDER CONTROLS Viewfinder Image Controls 5.1.1 On-Screen Menu 5.1.2 User-defined setups 5.1.3 Peaking 5.1.4 Contrast 5.1.5 Bright 5.1.6 Magnify 5.1.7 A – B User Setup 5.1.8 Display Aspect (Sony only) 5.1.9 Zebra (Sony only) 5.1.10... - Page 3 6.8.1 Y Monitor Mode – Exposure Meter 6.8.2 Mono Mode 6.8.3 Progressive and Interlaced Modes 6.8.4 Image Inversion (Rotate) ON-SCREEN INDICATORS SOFTWARE UPGRADE HANDLING AND STORAGE ADJUSTMENTS AND REPAIRS SUPPORT AND WARRANTY 11.1 Support 11.2 Warranty DISCLAIMER APPENDIX 13.1 Controlling colour using the Colour Matrix ILLUSTRATIONS Figure 1 Viewfinder and eyepiece controls Figure 2 User Setup Recall –...
- Page 4 Figure 16 Video image (a) Colour Mode, (b) Y Monitor Mode Figure 17 On-Screen Indicators Figure 18 CIE Colour Chart Figure 19 Colour Matrix TABLES Table 1 On-Screen Indicators...
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Page 5: Introduction
In this manual, comment preceded by is included for information or clarification only. 2 OPERATING GUIDELINES The VF1280S Mk II Viewfinder is designed only to be used as described in this manual. Do not use for any other purpose. •... -
Page 6: Quick Setup, Rec 709 Operation
Power up the camera • Check that a video image appears in the Viewfinder – typically in less than 10 seconds – with an on-screen display showing ‘AccuScene VF1280S’ • Press the MENU control knob to continue – the on-screen display disappears •... -
Page 7: Viewfinder Specification
4 VIEWFINDER SPECIFICATION Video input interface HD 1080 or 720, analogue Ys Pb Pr Nominal white level 700mV (100 IRE) Maximum Ys input 760mV (108 IRE) Video input format Accepts SMPTE 274M formats: 1920 x 1080/60/I 1920 x 1080/59.94/I 1920 x 1080/50/I 1920 x 1080/30/PsF 1920 x 1080/29.97/PsF 1920 x 1080/25/PsF... -
Page 8: Viewfinder Controls
5 VIEWFINDER CONTROLS Eyepiece Viewfinder Image Controls Demist Focus Heater (Rotate) (12Vdc) Figure 1 Viewfinder and eyepiece controls Viewfinder Image Controls See Figure 1. A pop-up slider indicates the current setting when Peaking, Contrast or Brightness is adjusted, unless the On Screen Menu is active, in which case the current setting for each is shown in the On-Screen Menu (Section 6.1). -
Page 9: Peaking
Excessive image intensity may lead to eye fatigue and temporary loss of colour sensitivity. Prolonged exposure to excessive image intensity may be harmful. AccuScene Corporation Ltd. accepts no liability for damage or loss resulting from inappropriate use. -
Page 10: Bright
5.1.5 Bright Rotate the BRIGHT control to increase or decrease the brightness of darker areas of the video image, to verify black level or assess detail within shadow (Figure 3). 100% Linear grayscale Output Increasing Increasing Max contrast (100%), Max contrast (+1.0), brightness brightness Decreasing... -
Page 11: A - B User Setup
• Return the switch to the centre OFF position to disable Magnify mode An on-screen indicator (Section 7) shows while the Viewfinder is in Magnify mode. 5.1.7 A – B User Setup A – B User Setups provide the user a convenient way of recalling either of the first two of the five stored user-defined setups. -
Page 12: Tally
To avoid the eyepiece misting up in a cold or damp environment, connect a 12Vdc supply (nominal load 1.5W at 12Vdc) to the demist heater (Figure 1). The socket type is LEMO Model ERA.0S. Suitable mating plugs include LEMO Model FFA.0S.302.CLAC17 (not supplied by AccuScene). -
Page 13: On-Screen Menu
6 ON-SCREEN MENU Main Menu The Viewfinder On-Screen Menu system opens showing the Main Menu, giving the user a list of sub-menus (Figure 4). An arrow at the left side of the main menu points to the sub-menu selected. The lowest line of the main menu and sub-menus shows factors summarizing the current settings of Peaking (P), Contrast (C) and Brightness (B) controls. -
Page 14: User Setup Menu
To return to the main menu from any of the sub-menus, rotate the MENU control to select Top. Press the MENU control to confirm. User Setup Menu Currently selected options and settings of the Viewfinder may be saved as one of A, B, C, D or E User Setups (Figure 5) within the User Setup Menu. -
Page 15: Led Setup Menu
Figure 7 Confirmation Box - Yes Previously saved User Setups may be loaded within the User Setup Menu. • Rotate then press the MENU control to select Load User Setup A or B within the User Setup Menu The Load indicator changes momentarily to inverse text to indicate that the setup is complete. -
Page 16: Vf! Ind Menu
• Press the MENU control to activate or hide the selected indicator The Temperature Indicator cannot be hidden. VF! IND Menu The Viewfinder setup warning indicator ‘VF’ (Section 7) is configured within the VF! IND Menu (Figure 9). On activating or de-activating certain conditions, the ‘VF’... -
Page 17: Gamma [Normal] State
• Rotate and press the MENU control to select the required [Normal] Matrix store, 1 – 5 6.4.2 Gamma [Normal] state The Gamma setup indicator can be configured to define any of the available options within the Gamma Menu as [Normal] (Section 6.6). - Page 18 • Rotate then press the MENU control to select individual weighting factors within the Matrix Menu • Rotate the MENU control to adjust the selected weighting factor then press it to confirm the required value The sum of colour factors (the first three rows) in each column of the matrix must not exceed 100;...
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Page 19: Gamma Menu
Gamma Menu (Figure 11). It is possible to load and select alternative pre-computed arbitrary Gamma functions in the form of 10-bit look-up tables, by special arrangement with AccuScene. Figure 11 Gamma Menu • Rotate the MENU control to select one of the Gamma... -
Page 20: Diagnostics Menu
Diagnostics Menu The Diagnostics Menu displays the current software version code, the serial number of the specific unit in use and the current internal temperature of the Viewfinder (Figure 12). The Menu also allows the user to select test images, set video black levels and restore a default setup. -
Page 21: Analogue Ys' Pb', Pr': Video Input Offset Adjustment
6.7.2 Analogue Ys’ Pb’, Pr’: Video Input Offset Adjustment To set optimum black and colour levels, and for correct operation of the exposure meter (Section 6.8), analogue video input offsets should be adjusted to match the particular camera in use. These adjustments, which should be checked regularly, are contained within the Diagnostics Menu. -
Page 22: Figure 13 Smte Hd Colour Bars
With the viewfinder in Y Monitor mode, adjust the Y offset • level until the right-hand PLuGE chip (+2.5%) of the three chips visible at the bottom of the test card (Figure 13) is showing mostly black with some purple noise. As a check, the peak white chip should be showing a mix of bright yellow and pale orange Figure 13 SMTE HD Colour Bars... -
Page 23: Factory Reset
6.7.3 Factory Reset If the User wishes to return the configuration of the Viewfinder to a known default state, the Factory Default configuration may be selected. • Rotate then press the MENU control to select Factory Reset within the Diagnostics Menu A dialogue box ‘Are you sure?’... - Page 24 • Alternatively, select ‘Mono’ mode to view a monochrome image. In this mode, the eyepiece display is refreshed at three times the rate of ‘Colour’ mode Mono mode is especially useful if the camera or its platform is in motion, such as mounted on a vehicle, where the fast refresh rate provides a very stable image.
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Page 25: Y Monitor Mode - Exposure Meter
6.8.1 Y Monitor Mode – Exposure Meter In Monitor Y mode (Section 6.8) the Viewfinder operates as an exposure meter, applying pseudo- (false) colour to indicate the intensity of individual pixels in the image. The colours used, and their relationship to Y’ (luma) video level (Figure 15) allow the Viewfinder to provide simultaneous real-time exposure and focus feedback to the camera operator. - Page 26 pink band centred on 70 IRE allows convenient exposure setup when capturing a human face, using Rec. 709 Gamma. These narrow bands at 41 and 70 IRE are calibrated for their purpose only when using Rec.709 Gamma and do not necessarily relate to standard exposure conditions when the camera is set up to use an alternative Gamma.
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Page 27: Mono Mode
Y Monitor mode is also sensitive to critical focus and can be used as an alternative to Peaking (Section 5.1.3). Where Peaking detects amplifies edges boundaries, Y Monitor mode artificially highlights subtle differences in intensity. This can allow critical focus in circumstances where Peaking would be less successful, for instance in imaging foliage or shaded surfaces. -
Page 28: Progressive And Interlaced Modes
6.8.3 Progressive and Interlaced Modes Although the Viewfinder automatically configures itself for any of the frame rates listed (Section 4), for correct display of interlaced video input, manual de-selection of PsF mode is required. Since PsF and I mode video inputs share an identical signal format, auto-selection is not possible. -
Page 29: On-Screen Indicators
• Rotate then press the MENU control to select YES to continue with Rotate Image, or to select NO to return to the Configuration Menu 7 ON-SCREEN INDICATORS Indicators, described in Table 1, are shown above and below the active video display to provide information about the status of the camera and the Viewfinder (Figure 17). - Page 30 Indicator Symbol Colour Meaning Battery BATT Orange When flashing indicates low battery. When flashing indicates high Viewfinder TEMP temperature. When steady Temperature indicates extreme high temperature. When steady indicates Record recording in progress. When flashing indicates problem in record module. Tally TALLY Green...
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Page 31: Software Upgrade
Viewfinder will not operate until completion of the upload restart process described above, followed by successful software upload. 9 HANDLING AND STORAGE The AccuScene VF1280S High Resolution Colour Viewfinder System is supplied within protective packaging. Transport and store the Viewfinder using suitable packaging. -
Page 32: Adjustments And Repairs
AccuScene Corporation Ltd. at its sole discretion. 11.2 Warranty AccuScene Corporation Ltd. will at its sole discretion repair or replace a unit which has failed within the Warranty Period (separate Warranty Certificate), provided: • The unit has been used, stored and transported in... -
Page 33: Disclaimer
AccuScene Corporation Ltd. has been informed of the Warranty claim (Section 11.1) and has agreed to accept return of the unit. This will include agreement by AccuScene of the means and routing of the shipment and issue AccuScene Return Materials Authorization (RMA) number •... -
Page 34: Appendix
13 APPENDIX 13.1 Controlling colour using the Colour Matrix The Viewfinder uses Light Emitting Diodes (LEDs) to illuminate its display. Red (R ), Green (G ) and Blue (B ) light from these LEDs is very pure. Using these, the display can create very vivid colours. - Page 35 The first three rows of the Colour Matrix (Figure 19) show the relative amounts of R and B light used to represent Red, Green and Blue input video data respectively. Red, Green and Blue inputs are arranged down the side of the Colour Matrix.
- Page 36 Blue LED Green LED Red LED Rec. 709 CIE Spectral locus 1931 Figure 18 CIE Colour Chart <Matrix> Load Save -1.0 Figure 19 Colour Matrix...