[peter_4059 (Peter)]

Originally Posted by RickS

What sort of masks, Peter? I make some fairly complex masks with PixelMath. PM is a doddle if you've done any programming but it's not really any harder than working with formulae in a spreadsheet.

Cheers,
Rick.

Rick, I've found trying to create a mask that reveals the nebulosity but conceals the stars is quite difficult in PI. I know you demonstrated this in the last workshop but there are a number of steps involved and I've found it tricky to know if the mask is going to be effective until you try it. I really need to find a pixelmath help file - some of the expressions mean nothing to me $T/3?

Originally Posted by batema

Again great image. You must be loving the new scope.

Mark

Thanks Mark. I do like it, it solved the primary mirror dew problem I had with the Newt at every previous Astrofest and the f4 optics really does collect data noticeably faster than the f5 of my Newt. Only problem is it is very difficult to collimate.

Originally Posted by Paul Haese

I feel similarly to Greg. It's nice to see this object being imaged from Australia. Nice detail in the object. Colour palette looks good too.

Cheers Paul.

Originally Posted by troypiggo

The OIII shell really adds to it, hey. Kudos from such a challenging latitude.

Thanks Troy.

Originally Posted by ozstronomer

Nice one Peter, I like your blending of the NB data

Geoff

Thanks Geoff. I've been using Ken Crawfords Colour Mapping and clipping masks in PS and this gives you great control of how the Ha and OIII gets mapped to the colour palette.