Digital BW, The Print

I have had some success in getting the dark skies I was craving, 
thanks to everyone that helped.  Most items, used in comination were 
very useful.
Workflow was as follows.
- narrow band cyan selection in hue/sat of sky, shift colour to a 
more cobalt blue.
- Reselect this colour range and copy it to a new layer.
- Noise reduction of this layer.
- Set to darken mode, around 80% opacity.
- Russel Brown style conversion from colour, with hue slider at 
around a quarter in from the LHS.
Bingo.  relatively noise free, dark skies.
Only thing I had to be careful of is making sure the copied layer is 
a good mask and doesnt encroach into foliage or other detail.

Thanks again.
Steve


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Editor P.O.V. 
Image Service" <editor@p...> wrote:
> To reduce some of the noise in the blue parts of the sky, before 
> converting to B&W, you might want to try simply  using the earlier 
> mentioned technique of layers and multiply to darken it up..  That 
> should also lower some of the  relative difference between the 
various 
> blues (since blackest blue remains fixed while all the blues will 
move 
> towards it.)   You may also want to try using the same selection 
mask to 
> shift the blues into a less cyan part of the spectrum (towards a 
more 
> cobalt blue) before converting..
> 
> Basically, the opposite of what I did to lighten the rocks in the 
> follow-up version..
> 
> 
>  
> Keith Krebs
> 
> "Just some guy," caretaker of the Multiverse's largest EPSON 
printer 
> User Community (highly recommended by Vogon Poets and MegaDodo 
> Publications), at:
> http://groups.yahoo.com/group/EPSON_Printers/
> and  the Multiverse's largest Canon printer User  Community at:
> http://groups.yahoo.com/group/Canon-printers
> "For the rest of you out there, the secret is to bang the rocks 
together 
> guys"