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Old 04-04-2007, 11:44 AM
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Geoff45 (Geoff)
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Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by rmcpb View Post
Very good work. Personally I would not worry about baffles if you are going to paint the inside a really dark/pitch black as this will be a form of flocking and will stop the ambient/off axis light from interferring with your images. When I "flocked" my tube with paint I gave it an initial coat of the stone finish paint that is lumpy to break up the surface then gave that a few coats of dead black flat paint (chalkboard paint).

Another reason to avoid baffles is that they can introduce air currents into your light path.
Another way to get a really dark tube is to paint it flat black, then while the paint is still wet, throw in some sawdust and move the tube around so you get a good even coat. The sawdust should stick to the paint, and when everything is dry, put on another coat of flat black.
Geoff
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