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Steve

SGLXII Star Party - Dates

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Lots of starparty activity, as Kielder also overlaps during that week, 26th to 31st Oct - hope to make this one. 

 

Here we are lads, so we all get to see the x factor after all.

 

 

 

 

SGL11-1.jpg.c15ae75b10f50f2b9fa55e3dc3814d2b.jpg

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I'll tell you something, I'm not following that white rabbit down that hole again!

 

SGL11-2.jpg.bad4253e8b8229578c4a36047fa9da11.jpg

Edited by scarp15
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Might just be able to make this one......of course, I won't know for sure until much closer to the event.

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2 hours ago, RobH said:

Might just be able to make this one......of course, I won't know for sure until much closer to the event.

Fingers crossed mate, hope to see you there! :)

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ooh goody,

these star parties are like London busses, don't see one for ages, then two in my first year :icon_biggrin:

I guess I'll be keeping my eye open for the booking link then. :hello2:

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I'm going to have to look at my pennies now to see if I can afford do the same as I did earlier this year.   The march trip was fun.

 

On 4/21/2016 at 22:56, Uranium235 said:

No prob Scott, prerequisite software needed for the method is Ps and something capable of pixel math (Maxim, PI LE etc), ie: something that allows you to subtract one image from another. It works best on galaxy images and widefield stuff, but complex nebulas that fill the frame are best tackled using a different method.

Can't you do the image subtraction using layers in photoshop?

On 4/24/2016 at 20:14, scarp15 said:

Lots of starparty activity, as Kielder also overlaps during that week, 26th to 31st Oct - hope to make this one. 

 

Here we are lads, so we all get to see the x factor after all.

 

 

 

 

SGL11-1.jpg.c15ae75b10f50f2b9fa55e3dc3814d2b.jpg

As for the photo caption, wasn't it "Phwoar"

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9 minutes ago, cjdawson said:

 

Can't you do the image subtraction using layers in photoshop?

 

Only in CS5 and above, but i've yet to test that theory. I will give it a go in the near future and will report back any progress.

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I paid for a Photoshop photographers subscription simply because it takes all the hassle out of the "well it's not in this version" stuff.  Had it for 18 months now, and whilst yes it's a cost.  I don't feel like it's a waste of money.  I am aware that some people don't have the money to spent on a subscription for software.

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12 hours ago, cjdawson said:

I paid for a Photoshop photographers subscription simply because it takes all the hassle out of the "well it's not in this version" stuff.  Had it for 18 months now, and whilst yes it's a cost.  I don't feel like it's a waste of money.  I am aware that some people don't have the money to spent on a subscription for software.

Just tested it... it works, but... its very heavy handed. I'll have to find a way to add a constant so it doesnt kill off background dust and shift the histogram hard left.

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Ok, ive had a fiddle around with it and here is what I came up with. I've applied it in such a way that it gets rid of vignetting, which is a little more difficult:

Grad-remove-test.gif

Ive got to find an easy way to do it (ie: a way that can be taught without confusion!).

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4 minutes ago, Uranium235 said:

Ok, ive had a fiddle around with it and here is what I came up with. I've applied it in such a way that it gets rid of vignetting, which is a little more difficult:

Grad-remove-test.gif

Ive got to find an easy way to do it (ie: a way that can be taught without confusion!).

Good luck with that Rob, I'm still trying to grasp the principal of the Cannistra Method :grin:

Dave

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Thanks :) (I might need it!).... I managed to confuse myself along the way...lol.

It should be easier if applied to a gradient, but I thought I would have a go at vignetting first. It still leaves the background a bit dark but I managed to keep the outer dust on the galaxy. Just need to find a way of fixing that in Ps. Its no such problem in Maxim or PI as they were designed to do background subtraction.

Unfortuantely, its not the kind of thing I can boil down to an action - as there are some steps that need to be done manually along the way.

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Haven't tried PI yet, usually try to do as little processing as possible in Maxim and hop of to PS ASAP :)

Dave

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Ooooooh exciting!

Although I'd be up for March and November!

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On ‎25‎/‎04‎/‎2016 at 18:39, RobH said:

Might just be able to make this one......of course, I won't know for sure until much closer to the event.

Will be nice to see you and Amanda, Rob - haven't seen you in yonks!

Ian will be 59 on 28th October - you could help us crack a bottle of fizz!

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8 hours ago, lulu57 said:

Ooooooh exciting!

Although I'd be up for March and November!

Oh good! We will need you both there for the quiz team again :)

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On ‎07‎/‎05‎/‎2016 at 21:27, Uranium235 said:

Oh good! We will need you both there for the quiz team again :)

Well, you'll need Ian for the quiz team (I'm just the light entertainment).

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On 21/04/2016 at 22:14, Scott said:

Can you knock up a vid for youtube for the gradient removal Rob?

I'll see if that can be arranged mate, I would need to install some software on the PC first.

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