Honeycombe effect

[Doctor Smith]

I have a sharp xv3000 and a Panoview 1.0 gain matted screen in certain moments in the film like bright sceens I can see a multi coloured Honeycombe effect in bright area. The screen has slight bumps all over it which is texture of screen. Any ideas

[Avi]

Originally Posted by Doctor Smith

I have a sharp xv3000 and a Panoview 1.0 gain matted screen in certain moments in the film like bright sceens I can see a multi coloured Honeycombe effect in bright area. The screen has slight bumps all over it which is texture of screen. Any ideas

Is this is a DLP PJ ? If so it may be RBE artefacts you are seeing. Try putting an A4 sheet of white paper on the screen and see if you notice the same effect when projected on to the paper. If you see the same it's not the screen.

AVI

[Doctor Smith]

What texture should a matted screen be like as mine has the slight bumps on it, paper image is ok

[Avi]

Originally Posted by Doctor Smith

What texture should a matted screen be like as mine has the slight bumps on it, paper image is ok

Do you mean a matte white screen surface ? If so it depends if it's supported i.e has a backing or unsupported i.e. stretched via a fixed frame or tensioned. If it's a normal pull down screen then it will be the former and the texture usually looks like painted woven fabric and is not perfectly smooth like a fixed frame/tensioned screen.

AVI

[Doctor Smith]

They may have sent me wrong screen, it is like PVC and smells rubber

[Avi]

Originally Posted by Doctor Smith

They may have sent me wrong screen, it is like PVC and smells rubber

Does it look like fibreglass coated in rubber i.e. you can see the texture if the material under the coating ?

AVI

[Doctor Smith]

Looks like brail bumps all over screen with rubber coating

[Doctor Smith]

The surface of the screen is like fine sand paper coated with rubber, in certain bright sceens you can see the roughness of the screen

[Avi]

Originally Posted by Doctor Smith

The surface of the screen is like fine sand paper coated with rubber, in certain bright sceens you can see the roughness of the screen

Are you sure it's a matte white 1 gain screen ? It sounds like it could be something like a high gain (see link) or similar that uses a type of tiny glass bead in surface coating to increase gain.

http://www.optoma.co.uk/screendetail...C=DS-9092PM.GB

AVI

[Tribeless]

I don't know off the top of my head what type of projector that is, but if LCD then that simply sounds like the 'screendoor' effect, in which case, it would simply be part of the course with that 'earlier' technology (the new 1080p LCD's don't have it).

[Avi]

Originally Posted by Tribeless

I don't know off the top of my head what type of projector that is, but if LCD then that simply sounds like the 'screendoor' effect, in which case, it would simply be part of the course with that 'earlier' technology (the new 1080p LCD's don't have it).

It's a single chip DLP.

AVI