Re: WJ sees Red!! (was: hoya R72 Filter)

[boblong@xxxxxxxxxxx (Robert Long)]

On Tue, 27 Aug 1996 23:04:52 +0100, Willem-Jan Markerink wrote:

|> Yes, course it does!!  When you think about 'opaque', substances like 
|> that opal perspex stuff light boxes are made of spring to mind.  
|> Whereas these dark red filters are transparent, even if dark coloured 
|> aren't they?
|
|My dictionary says: non-shining trough, dark.
|Heck, I didn't invent this word!

Yes, we really should be careful about the way we use words here,
because the basic subject matter can be confusing enough without
semantic quibbles.  To me, opal Perspex is translucent, not opaque.
When I think about "opaque," black Bakelite is more likely to come to
mind.

|I just had to restrain myself today in our Dutch newsgroup nl.foto, 
|in which someone mentioned that black-filters don't exist since black 
|is not a color....<insert proud smile here>

Goethe, of course, insisted that black *was* a color.  It seems that
he began his "Farbenlehre" because of his disgruntlement at Newton's
contention that black was the absence of all colors, just as white was
the presence of all colors.  He ended up by proving his presupposition
to be true--at least to his own satisfaction.  So much for scientific
inquiry!

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Topic No. 2