Re: ATM Black Flock Paper vs: Fine Black Velvet

["Chris Westland" <westland@uxmail.ust.hk>]

I've used black flock paper in my C8, all the way up and down the tube. 
The central baffle that holds the diagonal and the diagonal are the most
critical sections.  On these there was an enormous improvement over the
original black plastic/paint.  But there is still some reflection looking
up it in the day.  I suspect at night, that this is negligable.  The
improvement at the eyepiece is phenomenal ... crystal clear. 

Also, adhesive backed flocked paper is much easier to handle than velvet
and glue

-c

----------
> From: K1JJ@aol.com
> To: ATM@shore.net
> Cc: CCD@wwa.com
> Subject: ATM Black Flock Paper vs: Fine Black Velvet
> Date: Thursday, September 05, 1996 2:23 AM
> 
> Well, the jury is finally in; as far as I'm concerned.
> 
> I've read a number of opinions lately; here's mine:
> 
> I tried fine black velvet as I awaited the delivery of the black flock
paper
> from Edmund Scientific.
> 
> Under bright light the fine black velvet had a VERY dull "sheen", hardly
> noticeable. When cut, it had a tendency to spill small specks
around...and
> continues to...into the primary. I used a recommended "fabric glue" but
the
> material has already started to peel off.
> 
> In contrast, (appropriate word) the flock paper looked similar in
texture,
> but looking into it was like looking into a BLACK HOLE!   No sheen at
all.
>  Easy to work with with the adhesive back..... VERY strong adhesive
already
> on.
> 
> I also read in the archives that someone measured black velvet at IR
> frequencies and found it to reflect 50%....for what it's worth. Don't
know
> about flocks' reflectivity at IR.
> 
> Plus, the flock paper is 1/3 the price for the same quantity!  
> 
> 
> No one can change my mind on this issue....it's black flock paper all the
way
> for my work here...
> 
> Flamers..... not welcome.  haha
> 
> Tom Cathey