Adjusting the JVC DLA-RS2’s zoom and focus Posted on December 25, 2007 By Art Feierman 1. JVC DLA-RS2 1080p Home Theater Projector Review: Overview and Physical Attributes - Projector Highlights2. JVC DLA-RS2 Home Theater Projector: Physical Tour3. JVC DLA-RS2 Home Theater Projector: Physical Tour 2 - What the JVC DLA-RS2 seriously lacks, however, is a standard analog PC input4. JVC DLA-RS2 Picture Quality – LCoS Home Theater Projector Review - JVC RS2 Home Theater Projector: Skin Tones5. Projector: Black Levels and Shadow Detail - Black Levels6. JVC DLA-RS2 Shadow Details7. JVC DLA-RS2 Shadow Details 28. JVC DLA-RS2 Shadow Details 39. JVC DLA-RS2 Shadow Details 410. JVC DLA-RS2 Shadow Details 511. JVC DLA-RS2 Shadow Details 612. JVC DLA-RS2 home theater projector: Sharpness13. JVC DLA-RS2 home theater projector: Sharpness 214. Projector Overall Picture Quality15. JVC’s DLA-RS2: Viewing HDTV - JVC RS2 Picture Quality - Bottom Line:16. JVC RS2 Home Theater Projector Review – General Performance - JVC DLA-RS2 Menus - JVC RS2 User Memory Settings - JVC DLA-RS2 Projector - Remote Control17. Adjusting the JVC DLA-RS2’s zoom and focus - JVC DLA-RS2 Lens Throw and Lens Shift - JVC RS2 SDE and Rainbow Effect, Pixel Visibility 18. JVC DLA-RS2 Projector Brightness - RS2 Projector - Light Leakage - RS2 Audible Noise Levels19. RS2 Projector Screen Recommendations - RS2 Projector Measurements and Calibration - accuracy for movie watching - The Natural setting20. RS2 Projector Measurements and Calibration 2 - Color Temp set to High: - RS2 Image Noise - JVC RS2 - Other Features, Benefits and Issues21. JVC DLA-RS2 and HD-100 Projector Warranty22. Home Theater Projector Review: JVC DLA-RS2 LCD Projector: Summary, Pros, Cons23. JVC DLA-RS2 projector, Pros, Cons, and Typical Capabilities - JVC DLA-RS2 Projector: Pros - JVC DLA-RS2 Projector: Cons - JVC DLA-RS2 Projector: Typical Capabilities - JVC DLA-RS2 Summary: The Bottom Line Since JVC chose to use the same remote control for the RS2 as the RS1, the addition of power zoom and focus on the RS2, meant that there is no button on the remote that could be defined for those functions. Instead, press the Test button, select the green grid test pattern, and then hold down the left arrow key, and a FOCUS box will appear in the middle of the screen. (It only works with that test pattern, not the others. The up and down arrow keys let you focus. To adjust the zoom lens, then press the Enter button, which will toggle you back and forth between focus and zoom. Hitting the Exit button takes you back to normal viewing. JVC DLA-RS2 Lens Throw and Lens ShiftThe motorized zoom lens on the RS2 is quoted as having a 2:1 ratio. The actual lens throw chart in the manual indicates that the ratio is actually just slightly more than that. Officially, here are the numbers for a 16:9 100″ diagonal screen. Based on this info, you should be able to calculate the placement range for any sized screen. For the 100″ 16:9 diagonal screen, the lens can be as close as 9 feet 10 inches, or as far back as 19 feet 11 inches. The amount of lens shift is greater than most, quoted as being 80% vertical and 34% horizontal. As with almost all projectors with lens shift, the two affect each other. If you use most of 80% vertical, you are limit, the amount of horizontal shift, and vice versa. What does 80% mean? The center point would be having the lens at the same height as the center of the screen. The adjustment would allow you to move the image or down the same amount. Let’s assume that 100″ diagonal screen. It would be approximately 49.3″ high – but I’ll round to 50″ for simplicity. 80% of 50 inches would be 40 inches. The center point is at 25 inches, so up 40 inches would have the lens 15 inches above the top of the 100″ screen, or as low as 15 inches below the bottom. That 100″ screen would be 87 inches wide, so 34% of that would be about 27 inches either side of dead center, as the furthest off center – if you are not using the vertical lens shift at all. The manual has a chart to show you how they affect each other. JVC RS2 SDE and Rainbow Effect, Pixel Visibility ust about as good as things get. There is no rainbow effect – which is caused by the spinning color wheel in single chip DLP projectors. The JVC is a three chip LCoS, and therefore there is no color wheel, so, the Rainbow Effect is not even a relevant issue. SDE, or screen door effect, is the patterning caused by the fixed pixels of the projector, creating a pattern with the data being viewed. This has long been described as like viewing through a screen door. The larger the pixel size, the more likely. First, as a 1080 resolution home theater projector, the pixel size is very small, but more importantly LCoS projectors including the JVC RS-2, start with the least visible pixel structures of the three major types LCD, DLP and LCoS. As a result, the pixel structure is completely invisible at even the closest acceptable seating distance, and screen door effect is non-existan 1. JVC DLA-RS2 1080p Home Theater Projector Review: Overview and Physical Attributes - Projector Highlights2. JVC DLA-RS2 Home Theater Projector: Physical Tour3. JVC DLA-RS2 Home Theater Projector: Physical Tour 2 - What the JVC DLA-RS2 seriously lacks, however, is a standard analog PC input4. JVC DLA-RS2 Picture Quality – LCoS Home Theater Projector Review - JVC RS2 Home Theater Projector: Skin Tones5. Projector: Black Levels and Shadow Detail - Black Levels6. JVC DLA-RS2 Shadow Details7. JVC DLA-RS2 Shadow Details 28. JVC DLA-RS2 Shadow Details 39. JVC DLA-RS2 Shadow Details 410. JVC DLA-RS2 Shadow Details 511. JVC DLA-RS2 Shadow Details 612. JVC DLA-RS2 home theater projector: Sharpness13. JVC DLA-RS2 home theater projector: Sharpness 214. Projector Overall Picture Quality15. JVC’s DLA-RS2: Viewing HDTV - JVC RS2 Picture Quality - Bottom Line:16. JVC RS2 Home Theater Projector Review – General Performance - JVC DLA-RS2 Menus - JVC RS2 User Memory Settings - JVC DLA-RS2 Projector - Remote Control17. Adjusting the JVC DLA-RS2’s zoom and focus - JVC DLA-RS2 Lens Throw and Lens Shift - JVC RS2 SDE and Rainbow Effect, Pixel Visibility 18. JVC DLA-RS2 Projector Brightness - RS2 Projector - Light Leakage - RS2 Audible Noise Levels19. RS2 Projector Screen Recommendations - RS2 Projector Measurements and Calibration - accuracy for movie watching - The Natural setting20. RS2 Projector Measurements and Calibration 2 - Color Temp set to High: - RS2 Image Noise - JVC RS2 - Other Features, Benefits and Issues21. JVC DLA-RS2 and HD-100 Projector Warranty22. Home Theater Projector Review: JVC DLA-RS2 LCD Projector: Summary, Pros, Cons23. JVC DLA-RS2 projector, Pros, Cons, and Typical Capabilities - JVC DLA-RS2 Projector: Pros - JVC DLA-RS2 Projector: Cons - JVC DLA-RS2 Projector: Typical Capabilities - JVC DLA-RS2 Summary: The Bottom Line JVC RS2 Home Theater Projector Review – General Performance JVC DLA-RS2 Projector Brightness You May Also Like Optoma W460 Business and Education Projector Review Epson PowerLite 108 Projector Review InFocus IN2128HDx Business and Classroom Projector Review Sony VPL-EW435 Business and Education Projector Review Epson PowerLite 990U Projector Review BenQ HT2550 Projector Review – The Best 4K UHD Value Yet? Epson PowerLite 675W Ultra Short Throw Classroom Projector Review InFocus IN116xa Portable Projector Review Dell S718QL – A 4K UHD, Ultra Short Throw, Laser Projector Review NEC NP-P474U Business and Education Projector Review