Wolf Cinema Projector REF-1000 User Manual
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51 NOTES: 1) Input levels apply for the current source only, but for any color temperature used. 2) Assuming that color temperature has been set up based on the internal test patterns, you can then set up input levels for a given source so that it matches the color temperature of the internal test patterns. AUTO INPUT LEVEL – Temporarily enter a checkmark only if you are an experienced user and you have an unusual source that you feel needs further color temperature and/or input level adjustment. This compensates for incoming out‐of‐range drives (white) and black levels (black) that would cause “crushing” of light and dark colors in the image. After entering a checkmark, wait for the six slide bar values to stabilize, then delete the checkmark and exit. The Auto Input Level is automatically turned off upon exit from the Input levels Menu. BLACK LEVELS AND DRIVES ‐ To check your image and adjust these controls: Make sure overall “Contrast” and “Brightness” settings are both set to near 50. 1. NOTE: Not required for “Auto” adjustment. • Contrast = 50 (approx.) • Bright = 50 (approx.) 2. Check the color temperature setup using an internal grayscale test pattern, making sure to obtain a neutral grayscale. NOTE: Not required for “Auto” adjustment. 3. Certain input levels adjustments are not applicable for digital sources or sources going through the decoder. 4. If the blacks and/or whites appear OK, input levels do not need adjustment. If black levels are too high (and/or whites are too low, which is rare), you likely have a noisy source that is producing skewed input levels. Continue with Step 5. 5. Temporarily enable “Auto” in the Input Levels submenu. Wait for all 6 values to stabilize. Alternatively, do not use “Auto” — reduce black levels manually instead. Judge by eye and change one or more of the six levels as necessary to obtain proper blacks and whites. You may want to see only a certain color while adjusting — use the “Color Enable” option (described below). 6. Delete the “Auto” checkmark and leave the Input Levels menu. IMPORTANT: Do not use Input Levels to adjust color temperature. This will distort Contrast and Brightness functions as well as color temperature. AUTO COLOR ENABLE – When a checkmark is present, selecting a specific black level or drive to adjust will automatically enable the corresponding color in the display. Delete the checkmark to see all colors, or to enable a different specific color through the Color Enable Control. CLAMP LOCATION – This option (formerly known as sync tip clamping) can brighten the image produced from certain high‐resolution high frequency graphic sources. The projector automatically selects the best clamp location for almost all sources. Use the normal Back Porch location if the image is either sufficiently bright or overly bright. Select Sync Tip if the image appears unusually dim, if there are horizontal streaks across the image, or if there is significant color drift. This moves the clamping pulse from the normal back porch location (which is likely too short) to the tip of the horizontal sync pulse. Tri Level is typically needed for an HDTV source.
52 COLOR ENABLE – Select which color or colors you want to see in the display, useful while working with color temperature white levels or input levels. NOTES: 1) Input levels apply for the current source only, but for any color temperature used. 2) Assuming that color temperature has been set up based on the internal test patterns, you can then set up input levels for a given source so that it matches the color temperature of the internal test patterns. PEAK DETECTOR – The Peak Detector is a tool to assist with defining individual input levels, enabling you to accurately set the Input Levels for any particular source with the appropriate image. Enabling the Peak Detector activates a special operating mode for detecting only pixels that are considered black or white — all other levels are displayed as a mid‐level gray. When used with a smooth grayscale pattern in which black and white are known to be at opposite edges of the image, you can watch these isolated areas while adjusting individual black levels and white levels until both black and white edges are just visible and distinguished from neighboring pixels. Images from this source will then display correct blacks and whites without crushing. Adjusting Input Levels Using the Peak Detector: 1. Display a 16 level grayscale test pattern from the desired external source, and enter a checkmark in the Peak Detector checkbox. NOTE: The “Peak Detector” will initially render the grayscale as a uniform gray field before adjustment. 2. Display one primary color. NOTE: Selecting Auto Color Enable insures the correct color is displayed for each setting. 3. For the current color, adjust its corresponding “Black Level” slide bar just until a single band of black appears at one edge of the screen. This band represents the first band of the grayscale pattern, which should be 100% black. Do not adjust too far. 4. With the same color still active, adjust its corresponding “White Level” slide bar just until a single band of color appears at the opposite edge of the screen. This band represents the last band of the grayscale pattern, which should be 100% white (or the current color, if a certain color is enabled). Do not adjust too far. 5. Go back and check the black band — adjust the black level slide bar if necessary. NOTE: Readjusting the black levels affects the gain at this point; only readjust when absolutely necessary. 6. Repeat Steps 3‐5 with the other two remaining primary colors. When each primary color shows one optimized black band and white (or colored) band, the input levels for this source are correctly set. Upon exiting the Input Levels menu, the Peak Detector checkbox will clear.
53 Advanced Image Settings — SUBMENU Use the Advanced Image Settings submenu to make the adjustments necessary for lesser‐used but more specialized applications on your projector. Gamma Table — This control applies a default video, graphics or simple gamma table or “curve” to your images, controlling the intensity of mid‐level colors and producing maximum contrast, brightness and color performance. As shown at right, the graphics curve is a modified power curve that will show more detail in darker areas of the projected content while the video curve has a linear segment near black to compensate for increased black levels typical of video signals. A simple gamma curve is a true power curve that does not alter the contrast or the intensity of mid‐level colors. Keep in mind that any Gamma Table choice sets the related Gamma value (shown in the Picture Adjustments menu) to a 2.4 default, where it can be fine‐tuned as desired. Different values (1‐3) here indicate that the original gamma table has been adjusted with either the Gamma slide bar or direct key. Select Color Adjustment — In “Select Color Adjustment”, choose an overall color performance for all images. The “Max Drives” factory default simply drives all 3 colors at their maximum level so that they are fully on and cannot be changed. The two other pre‐defined color adjustment choices — SD Video and HD Video — apply a color gamut optimized for video sources (standard or high‐definition). Alternatively, you can specify a color temperature, which enables the nearby Color Temperature slidebar and applies its current setting (default = 6500K). If none of the pre‐defined “Select Color Adjustment” options or color temperatures suit your application, select one of four color gamut previously defined by a user (User 1, 2, 3, 4). A “User” option applies a customized color performance in which the user has precisely set the hue and intensity of each color component in the Color Adjustment by X/Y or Color Temp Adjust submenus, and is most often needed with multiple‐projector applications. Select the color adjustment producing the best color accuracy for your application and installation. To configure a “User” color adjustment (gamut), use either the Color Adjustment by X/Y or Color Temp Adjust submenu found in the Display Setup menu under Geometry and Color. NOTES: 1) “Color Temperature” defaults to 6500K until changed. All four “User” options default to SD Video unless the user has redefined them. 2) Factory‐defined color primaries, which insure consistent color gamut from projector‐to‐projector, can
54 be calibrated in the Service menu only. If you suspect alteration, the factory settings can be recovered with selection of “Reset to Factory Defaults?” in the Color Primary Settings submenu within the Service menu (password‐protected). Color Temperature — Adjust to apply a specific and accurate color temperature to all displays. Color temperatures are expressed in degrees Kelvin (3200‐9300K), and utilize different combinations of the projector’s original native color primaries to produce a “coloration” or cast (reddish or bluish) in images—the lower the temperature, the more reddish the cast; the higher the temperature, the more bluish the cast. Note that the slide bar is enabled only if you have a source connected and have selected “Color Temperature” in the adjacent “Select Color Adjustment” pull‐down list in the Advanced Image Settings menu. Iris ‐ The IRIS inside the projector controls the diameter of the light beam passing through the system. With a fully open aperture (slide bar default of “0”), the maximum amount of light passes through for maximum brightness in your images. Increase the slide bar setting to reduce the aperture diameter and maximize contrast ratio instead. Performance of aperture depends on the lens in use. NOTE: IRIS also appears in the lamp menu. SIMULATION 3D — SUBMENU Use the options in the Simulation 3D menu to make the timing adjustments necessary for realistic simulation and 3D images. NOTE: This is not to be confused with full 3D image processing, as found in the advanced 3D‐enabled processing and technology options on the REF series of projectors. FRAME DELAY MONITOR — This slide bar monitors the latency between input and output. For best results, the bar width and value should remain fairly constant, indicating that timing of input and output frames is locked; the Frame Delay Monitor value should stay within 5‐10 lines or so of the Frame Delay setting. If a frame is lost or “dropped”, the bar will move suddenly and the values will change, indicating that the frame input is no longer equal to the output. FRAME DELAY — Set the number of lines delayed between the input signal and its appearance on screen, keeping in mind that projector processing always adds one frame of delay to the frame delay setting. For applications such as simulation, where the feeling of “real time” image response is a priority, a minimum setting is usually preferable. For projectors capable of 3D (stereographic) applications where alternating left‐right frames must be synchronized with the corresponding L/R shutters in 3D glasses, a total frame delay setting of two (or multiple of two) may be more useful. If set too high or low, frame locking will not be possible — most sources require approximately 50 lines of delay to insure frame locking. FRAME LOCK ENABLE — This option allows the projector to control the output frame timing based on the input signal. The locked option forces (if possible) the output image to be phase locked to the input frames. Rate Matched means that the output runs at close to the input frequency but isn’t locked to it so the output will drift in phase relative to the output. Free Run forces the output to run at a 60Hz frame rate.
55 MOTION FILTER — This control is most useful for smoothing out moving images from interlaced sources. In most cases the proper Motion Filter setting is automatically determined according to the type of incoming source signal. However, if your source is jittery and/or tearing you may wish to “force” a setting to insure stable processing for this source—if desired, override the default “Auto” setting by selecting the appropriate motion filter: 1. AUTO: The projector will automatically use the correct motion filter according to the incoming signal. 2. STILL: For static images with no motion, such as graphics from a CD. 3. MOTION: For video images that did not originate from film, or for moving computer generated images. 4. FILM: For video images that originated from film. This will optimize image quality and stability. 2/3 PULLDOWN THRESHOLD — This setting determines how sensitively the projector can detect if an incoming video signal originated from film or not. DETAIL THRESHOLD — Use “Detail Threshold” to define at what frequency level the “Detail” control will begin to magnify high frequencies, which adds details back into the image. Raise the threshold to ignore more of these high frequencies, and lower the threshold to magnify more of these frequencies. A setting of “0”, for example, means no noise will be ignored and all will be magnified. An ideal detail threshold is one in which high frequencies that are causing objectionable noise are not magnified when using “Detail”, but frequencies which can help sharpen an overly‐soft image are magnified. Adjusting System Parameters and Advanced Controls Use the Display Setup menu to define general operating parameters and communications with other projectors and equipment, and to access other advanced processing and image adjustments affecting overall performance. In addition, the Display Setup menu provides access to diagnostics, calibration tools and the Service submenu (password‐protected). Keep in mind that settings in the Display Setup menu (and its submenus) are typically “global” settings applied regardless of the type of source being used. This characteristic is identified with the (globe) icon alongside the option. The first six options in the Display Setup menu are explained below: NOTE: The Display Setup menu is recommended for experienced users/technicians only. Language Choose from available languages to use in the projector’s menus. The change will take effect immediately. Image Orientation Set the orientation of the image according to the orientation of your projector. If the setting is incorrect, projected images will be reversed and/or upside down.
56 Auto Power‐up Enter a checkmark to enable the projector to automatically power up after losing power due to a power failure or due to unplugging the projector during operation. Wolf Cinema recommends that this be left unchecked, as a power loss in an unattended house will result in the projector turning on without anyone realizing it is on. Note that unsaved display adjustments may be lost. Set Date & Time Enter/read the current year‐month‐day and hour‐minute‐second. Changes here reset the projector’s real‐time clock. MENU PREFERENCES — SUBMENU Use the options in this submenu to adjust the appearance, content and/or location of on‐screen menus and messages. LARGE MENU FONT — Enter a checkmark to enlarge menus and their text. You may have to adjust “Menu Location” to accommodate the increased menu area. MENU LOCATION — Use the pull‐down list to choose a pre‐defined default or customized location for the display of all on‐screen menus. To create a custom menu location quickly, choose a preset that is closest to the desired location. Then adjust “Horizontal Shift” and “Vertical Shift” slidebars to move the menu to the desired location. Avoid locations too close to a corner or edge to prevent cropping of larger menus. HORIZONTAL SHIFT AND VERTICAL SHIFT — Shift your menus as desired, creating a customized menu location. DISPLAY CHANNEL LIST — Enter a checkmark if you want to see a scrollable channel list whenever you press Channel from your presentation. Channels marked with a list icon in the Channel Setup menu will appear here. The “Display Channel List” option also enables on‐screen feedback when using the Channel key. If you prefer to hide the channel list and input dialog box while switching channels and sources during a presentation, clear the checkbox. NOTE: The Channel List and input dialog box cannot be hidden during use of the menus. DISPLAY SLIDEBARS — Enter a checkmark to superimpose a small slidebar over the current image whenever an adjustable parameter is selected directly with a key such as Contrast or Bright . If “Display Slidebars” is unchecked, these slidebars can still be accessed, but will be hidden during adjustment. This option does not affect slidebars in menus. DISPLAY ERROR MESSAGES — Choose how you want to be notified of errors detected in either the incoming signal or projector. Select “Screen” or “All” (default) to see brief on‐screen messages. This is particularly recommended during setup or testing of the projector. Or select “Serial Ports” to receive messages via RS232 or RS422 serial communication only. To hide error message displays, such as during shows and presentations, select “Off” or “Serial Ports”.
57 GEOMETRY AND COLOR In the Display Setup menu, select the Geometry and Color submenu when you need to modify overall color performance and/or image geometry for all sources. Test Pattern Choose the desired internal test pattern or select OFF to turn off a test pattern. Alternatively, use the Test key for cycling through test patterns. Keystone Use to correct a keystoned image shape in which both sides of your image are inclined toward the top or bottom edge. Keystone is typically caused by tilting the projector in relation to the screen, so that the lens surface and screen are no longer parallel to each other. NOTE: Wolf Cinema recommends that the keystone feature not be used unless absolutely necessary, as it may cause artifacts in the image. White Field Uniformity Corrects for shadows caused by short throw or anamorphic lenses. Edge Blending The Edge Blending submenu provides a range of controls for smoothing together the overlapping bright edges of multiple adjacent projected images to create a single larger “seamless” image. These controls, which primarily affect white levels, are typically used in conjunction with mechanical lens blinders (optional), which are installed on the front of the projector and which primarily affect black levels. There is a centerline (both horizontal and vertical) in the Edge Blending test pattern. The intersection of these lines is the true center of the projector’s display area. NOTE: 1) There is a centerline (both horizontal and vertical) in the Edge Blending test pattern. The intersection of these lines is the true center of the projector’s display area. Color Adjustments by X/Y and Color Temp Adjust
58 NOTES: 1) For defining or changing a User 1, 2, 3, or 4 color performance or “gamut”. Sometimes known as Comprehensive Color Adjustment™. 2) Factory‐defined primary color levels, which insure a specific color performance from projector‐to‐projector, can be calibrated in the Service menu only. If you suspect alteration of these defaults, the factory settings can be recovered with selection of “Reset to Factory Defaults?” in the Color Primary Settings submenu accessed via the Service menu (password‐protected). From the factory, the projector can utilize any of the three pre‐defined color performance settings identified at right (default=Max Drives), or colors can be driven on the basis of color temperature. For most applications, one of these gamuts will produce accurate and realistic colors from a variety of sources. They can be applied at any time in the Advanced Image Settings menu (“Select Color Adjustment”), and are not adjustable. DEFINING “USER” COLOR GAMUTS: In some cases, you may find that none of the predefined “Select Color Adjustment” options exactly suit your needs. For example, you may require a unique color gamut (range) for a single projector or application, or you may need to precisely match colors across multiple adjacent displays. In such cases, use the Color Adjustments by X,Y or Color Temp Adjust submenu to define the precise hue of each primary color component (red, green, blue, and white) used to generate the millions of colors produced in displays. You can create up to four custom color gamuts (User 1, 2, 3, or 4) with these adjustments. Note that the two menus differ only in their user interface, so use whichever menu best suits your needs and application. A color meter can help with adjustments. • Color Adjustments by X,Y — Enter known x/y coordinates from the chromaticity graph. • Color Temperature Adjustment — Adjust color slide bars and judge image color by eye or meter. A user‐defined color “adjustment” can be applied by selecting it in the Advanced Image Settings menu (“Select Color Adjustment”). COLOR ADJUSTMENT BY X,Y: Use this submenu if you want to create, alter or copy a color gamut (i.e., “color adjustment”). Controls in this menu define the precise hue of each primary color component (red, green, blue, and white) used to generate the millions of colors produced in displays. The x/y coordinates for each color define its location on the standard CIE chromaticity graph (see Figure 3.x)—changing either or both of these numbers will change the hue of the color, and relocate the “triangle” for possible colors. For example, changing the x/y coordinates for red may move the color closer to orange or closer to violet, which will in turn affect all displayed colors having a red component. Adjust the slide bars or enter new specific coordinates as desired to define or change up to four “User” color gamuts needed for your environment and applications. Apply at any time in the Advanced Image Settings menu.
59 NOTE: Keep new x,y coordinates within the original color gamut triangle shown here. Color Temp Adjust: Use this submenu if you do not have specific color coordinates in mind and will simply judge color performance by meter. Like the Color Adjustment by X,Y submenu, each color control actually defines new x/y coordinates for that color and changes its hue — it is just a different interface. Adjust the hue of each primary color (red, green, blue, and white) by using more or less of it in relation to the other colors. NOTE: A Color Temp Adjust adjustment defines the corresponding x/y coordinates shown in the Color Adjustment by X,Y submenu. These x/y coordinates will remain stable for this User gamut until they are changed again via either menu. Values displayed in the Color Temp Adjust menu, however, will likely fluctuate as you use the projector, and will be different when you return to this menu at some point in the future. These floating changes do not affect the x/y coordinates or gamut. Black Edge Blending Black Edge Blending is a feature that eliminates the differences between black levels when edge blending multiple projectors. The Black Edge Blending submenu provides many controls to allow the edges of adjacent images to be smoothly overlapped creating a “seamless” image. Edge blending smoothes white levels, and if edge blending is not in use, Black Edge Blending is disabled. Black Edge Blending provides a simple solution for uneven black levels, without the need for external hardware, by matching up black level hues with a “target area” hue (the intersection of the center lines), and adjusting the overlaps (edges) surrounding the target area.
60 NOTES: 1) There is a centerline (both horizontal and vertical) in the Black Edge Blending test pattern. The intersection of these lines is the true center of the projector’s display area. 2) Adjust white levels before adjusting black levels.3) Blinders are recommended for fixed installations. Default Color Adjustments Refer to System Configuration – Geometry and Color, Color Adjustments by X,Y for description. Lens VariScope™ (LVS™) LVS™ provides the ability to recall focus and zoom settings specific to each source input. Custom lens settings you’ve chosen for any source will be quickly and accurately applied when you select a source that has already been calibrated. Place a checkmark in the checkbox to enable LVS™. If no calibration has previously been done you may be prompted to do a full calibration. If a motion calibration has been done, you will be prompted to complete a reference calibration. If both calibrations have been done, the checkbox will be checked and LVS™ enabled. If LVS™ is enabled, a reference calibration will be done on power up and the lens will return to the saved position of the source that is active at the time of power up or to the position the lens was located when it was powered on. Further adjustments to the zoom, focus and position will be automatically saved for source the selected source. If you switch to a source with different lens settings and switch back, the lens will automatically move to your saved settings upon return. Other sources can be used without using LVS™ . NOTES: 1) See System Configuration – Diagnostics/Calibration, LVS Calibration for further details about calibration. 2) LVS™ control is a preference setting and will be retained between power cycles. DIAGNOSTICS/CALIBRATION Test Pattern Choose the desired internal test pattern to display, or select OFF to turn off a test pattern. Alternatively, use the Test key for cycling through test patterns. NOTE: There is a centerline (both horizontal and vertical) in the Edge Blending test pattern. The intersection of these lines is the true center of the projector’s display area. Test Pattern Grey Level Set the desired level of grey for displaying in the full gray field test pattern. Freeze Image Enter a check mark to freeze (stop) an image on a single frame. This diagnostic tool is useful if you need to examine in detail a still version of an incoming image that cannot be “frozen” at the source. For example, in moving images