As I'm using the zoom method for scope I need to re-paint the wall my screen is on so that I don't see the top and bottom bars on the wall. I picked up some of this yesterday http://taubmans.com.au/Professional/Easy-Coat in flat black which is basically pre-mixed off the shelf. However I painted the wall today and it's closer to charcoal than black and I can still see the bars, obviously not as bad as before.
I assuming someone has been down this path so are you able to advise me what paint colour you used to obtain the blackest black!