Can you make Blue from just the Red and Green

[kinetic]

Not sure which topic this belongs in so this will do...

Tonight, like a lot of nights , I have been niggled by
cloud, tracking problems, you name it, it has been thrown at me
tonight!:mad2:

I was ready to take the last set, the Blue set of my RGB set
and I've been shut down by the homemade worm gear failing!!:sadeyes:
I'm too heartbroken to go into what's failed, when I've cooled down
in a day or so I'll write up the damage in the ATM thread....but for now,
is it possible to synthesize the blue from the Red and Green already
captured?

Steve

[peter_4059]

Steve,

Sorry to hear about the worm failure. I know you can synthesize the green from red and blue (there's a carboni action that does this) however I'm not sure about blue from red and green. I always start with red and do blue second for this reason.

Peter

[kinetic]

Dang, thanks Peter.

Edit: actually it's not as bad as I thought. I ripped the gear apart in the dome
5 mins ago and give it a quick clean with petrol and a toothbrush.
Knowing my luck I will probably blow up from the highly explosive
air I'm sitting in as I type. Gear face looks much better with the grease and
aluminium shavings cleaned away so I can see the damage.
The scope went into a nosedive as the worm drove itself completely
out of mesh. I caught it as it had gone about 15-30 degrees of
scraping worm across 'mountaintops' of the wormgear!
When I saw that happening naturally I was gutted, kinda like the
feeling of dread I feel when the mother-in law is coming over...

Looks pretty good, no obvious scrape marks, but I'm at a loss to
why it was able to drive itself out of mesh?. It's all locked and bolted
solidly in mesh. I think possibly the worm cradle thrust bearing has slipped
out of centre somehow....

[mithrandir]

Steve, have you only got G and B? If you have L you could try subtracting G and B from that.

[kinetic]

Andrew,

I have Lum from a few days ago, different seeing, smaller stars.
I have Red and Green from last night, Blue missing......

Can I work something from that?

LRGB<--- newbie

Steve

[JohnH]

Have a look at this method:

http://www.starrywonders.com/bicolortechniquenew.html

I used it to generate the image in this thread:

http://www.iceinspace.com.au/forum/showthread.php?p=577506#post577506

Of course being narrowband my colours are synthetic but I cannot see why you could not apply a similar approach to LRGB.

[kinetic]

Thanks John,
I will give it a try, cheers,
Very nice Eta Car btw :):thumbsup:

Steve