Fisejs Posted July 21, 2016 Report Share Posted July 21, 2016 Hello, I am trying to blend two projectors Sony FHZ60 the blend is 400 pixels, automatic wo blend. WO 6.1.2. Win 7, Firepro 7100 and it goes through HDBase-T Atlona. The blend is perfect with some footage, but often two lines can be seen on the sides of the blend area. The lines can be clearly seen with solid grey projected, like here: https://drive.google.com/file/d/0BwbijMO0tib2UEZmbDZRb1Z3Rk0/view?usp=sharing or https://drive.google.com/file/d/0BwbijMO0tib2bW9heVQ5TFo1UFE/view?usp=sharing Is this correct behaviour? Should I see this or should I see perfect grey plane? Thank you for answer. 0 Quote Link to comment Share on other sites More sharing options...
Moderator jfk Posted July 21, 2016 Moderator Report Share Posted July 21, 2016 Could your issue be an incorrect gamma setting on the projectors? Gamma is crucial to good blends. what does a projected gray scale look like? 0 Quote Link to comment Share on other sites More sharing options...
Moderator Miro Posted July 30, 2016 Moderator Report Share Posted July 30, 2016 If you see banding in the gradient then the problem is usually that the color wheel in the projector is out of sync. This applies only to single chip projectors and can be corrected in the service menu in the projectors. When setting up a multi-projector solution all projectors should be calibrated in the following order: 1, Color wheel calibration/synchronization 2, Color/gamut calibration 3, Intensity/Brightness calibration 0 Quote Link to comment Share on other sites More sharing options...
Jonas Dannert Posted August 3, 2016 Report Share Posted August 3, 2016 The Sony FHZ60 does not have a color wheel, it's a 3LCD system with a laser phosphor light source. http://www.sony.co.uk/pro/product/projectors-installation/vpl-fhz60/overview/ The fact that it's not a DLP-based system, and less seen/tested than such a system, makes it even more important to adjust gamma/color/brightness/contrast at setup. I agree that is is more of a projector setup issue than a WATCHOUT setup issue. rgds/jonas 0 Quote Link to comment Share on other sites More sharing options...
kolakolakola Posted August 3, 2016 Report Share Posted August 3, 2016 I actually experienced this recently, as well. I have to agree with Fisejs - Watchout blending does do something weird toward the edges of its gradients. In my scenario, I ended up disabling all of Watchout's native blending tools and going "old school." I built custom feathered overlays in photoshop, and placed/scaled/positioned them on discrete tiers for each output. After a bit of tweaking, this looked 10x better and eliminated the "highlight" lines around the Watchout blends - which also indicates to me that this was not a gamma/projection issue. 0 Quote Link to comment Share on other sites More sharing options...
Zandor Posted August 10, 2016 Report Share Posted August 10, 2016 It looks to me like the Watchout blend is bigger then the physical blend area on the projes as the gama drop-off starts too early... 0 Quote Link to comment Share on other sites More sharing options...
Fisejs Posted August 21, 2016 Author Report Share Posted August 21, 2016 Sorry for not answering so long, but I had to "dismantle" the instalation and I could not do new tests. The projectors have special multiprojection preset with gama set to 2.2 so this should not be the problem... 0 Quote Link to comment Share on other sites More sharing options...
Moderator jfk Posted August 21, 2016 Moderator Report Share Posted August 21, 2016 ... The projectors have special multiprojection preset with gama set to 2.2 so this should not be the problem... Claimed or actually verified on screen? 0 Quote Link to comment Share on other sites More sharing options...
Fisejs Posted August 22, 2016 Author Report Share Posted August 22, 2016 Claimed - at the projector settings. 0 Quote Link to comment Share on other sites More sharing options...
Fisejs Posted August 24, 2016 Author Report Share Posted August 24, 2016 If I may have a noob question: how would you verify gama level on screen? With a calibration sond like Spider 5 elite? Which states that it can calibrate front projectors. http://spyder.datacolor.com/portfolio-view/spyder5elite/Or with some other metod / equipment? 0 Quote Link to comment Share on other sites More sharing options...
Fisejs Posted September 12, 2016 Author Report Share Posted September 12, 2016 Hello, we have installed-warped-blended the projectors. The blend is 300px wide and is seamless when the image is colorfull enaugh: https://drive.google.com/open?id=0BwbijMO0tib2bHNKNDZmTFpwTFk I understand that the overlaps are seen with darker images, but they are see also with brighter images: https://drive.google.com/open?id=0BwbijMO0tib2Z1N0OWZzeTFGbVk And everywhere in grayscale: https://drive.google.com/open?id=0BwbijMO0tib2cWFkWXRBUUZIazQ https://drive.google.com/open?id=0BwbijMO0tib2SGxtcTlZalZZSWM https://drive.google.com/open?id=0BwbijMO0tib2ZXg3LUk4LThXcGs As I said before the projectors are set to gama 2.2, but its not verified by any measurement. Is this normal or do you get perfectly blended grayscale with lets say calibrated projectors? Thanks for any suggestions how to make the blend better. Unwarped setup https://drive.google.com/open?id=0BwbijMO0tib2WF9fUVhqMDkxeWs Warped grid: https://drive.google.com/open?id=0BwbijMO0tib2dGhYNWlOQ0tmX00 0 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.