Re: ATM New Baffles Material

[Brian Nestel <blast@aloha.net>]

Greg Furtman wrote:
> 
> Just a thought about baffling or roughing up the interior of a tube. Has
> anyone tried lining the interior of their tube with something like a dark
> colored cloth like terry cloth(the stuff that bath towels are made out of?)
Hi:
There has been much discussion about what to put in a tube, flat black
paint
or saw dust, glue, and flat black paint, some people like black velvet, 
and there is also black stick on flocking paper from Edmund Scientific, 
I haven't compared the saw dust and black paint because it's not as easy 
to apply as the others, but naturally the velvet and the flocking paper
beat out plain flat black paint, and using a light meter to measure 
incident light, the flocking paper beat out the four different type
of black velvet I compared it to. I would be leary about putting terry
cloth in a scope as toweling tends to lint out and it may just
contribute to more dust on the primary. Although thinking about it
gluing terry cloth in and then painting with flat black may be a way 
to go, be less messy than appling sawdust. If I ever get some spare
time it might be an interesting experiment to compare all of the 
above.
-- 
Aloha   159 36 W, 21 58 45 N
Brian   Middle of the Pacific,
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