Milky Way Volcano

[rogerg]

Some fun at the end of a night at Kalbarri, I couldn't resist :)

http://astrophotography.com.au/volcano-milky-way/

4 x 60s
Canon 6D @ 6400ISO
Canon 17-40 @ F/4 17mm

Roger.

[hotspur]

WOW,impressive-looks like a back drop from a 'Dr No' episode-I can just imagine his blue box landing on the 'volcano'!.great work!

[gregbradley]

That is very nice Roger and I like the sky colour, colours in general and of course the clever composition. A tiny nitpick would be a little bit of magenta/purple colour aberration from the lens in some of the outer stars that defringing tool in Lightroom or your Canon software should eliminate easily. Most widefield camera lenses get chromatic aberrations
in the outer regions.

Greg.

[rogerg]

yeah, agreed Greg, would rather not have it. DPP already had lens correction turned on, and attempts in Photoshop CS3 didn't improve it.

I don't have lightroom :(

[RickS]

Very nice, Roger!

[matt34]

Great shot roger. I like the foreground light, was that light painted?

To help with the CA have a play with the DLO (digital les optimizer) in DPP I've had good results with it reducing the purple halos.

[gregbradley]

In Photoshop, selective colour tool and play with magentas or saturation tool set to magentas and reduce saturation. You can selectively layer that in if a global correction reduces wanted colours elsewhere.

Usually the selective colour tool will do it.

Not sure about the Canon software but often defringe is a slider tool that you can adjust the amount of. In Lightroom its more sophisicated than that and you can adjust the colour and hue it eliminates plus it does greens as a separate setting as well as purples/magentas. But simply desaturating magentas will take care of it. Even using the colour balance tool in PS, highlights and reduce magenta to green.

Greg.

[rogerg]

:lol: glad it's such an imaginative scene :)



Thanks :)



Yes, same flash technique as previous shots.



I'm a bit confused by DPP's settings right now, I need to play with it a reasonable bit. It definitely has a lot of CA correction enabled for this image already.

However I have noticed the CA is largely re-introduced by the saturation boost in Photoshop. I will selectively remove/tune that saturation boost.



Thanks Greg. I'm not very fluent with Selective Colour layers. Probably worth me trying to get a hold on them.

[ourkind]

Well done Roger that's very cool!

[strongmanmike]

Great idea Roger, looks very cool :thumbsup:

Mike

[gregbradley]

Its not layers its just the selective colour tool- adjustment/selective colour, set to magenta and have play with the sliders. Alternatively the colour balance tool (control B) and set to highlights and pull the magenta-green slider over to green a bit. Alternatively control U to bring up the saturation tool and set to magenta and desaturate to reduce the magentas.

Greg.

[rogerg]

Thanks :)



Thanks :)



I'm quite sure we're talking about the same thing Greg - If an adjustment is available as an Adjustment Layer, I use it as such rather than adjusting the image. Unless you're meaning selecting a Colour Range?

[gregbradley]

I'm quite sure we're talking about the same thing Greg - If an adjustment is available as an Adjustment Layer, I use it as such rather than adjusting the image. Unless you're meaning selecting a Colour Range?[/QUOTE]


Oh I see, yes you are right.

Greg.

[iceman]

Lovely shot Roger!

[Ross G]

A beautiful photo Roger.

Great composition.

Ross.

[rogerg]

Thanks Mike & Ross, your comments are much appreciated.

Regards,
Roger.