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Old 08-03-2012, 05:15 PM
swannies1983 (Dan)
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Sculptor Galaxy Repro

I now understand how important it is to spend just as much time processing your images as you do capturing those elusive photons. After doing a lot of reading and watching video tutorials, I am now quite happy with my reprocessed Sculptor Galaxy

Details
Scope: 8" Newt
Mount: EQ6
Camera: unmodded canon 400D
ISO800
Exposure: 4hrs worth of data @ 5 min subs
Stacked in DSS and processing using Photoshop CS3

Picture here

Any further processing tips certainly welcome
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  #2  
Old 08-03-2012, 05:30 PM
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tilbrook@rbe.ne (Justin Tilbrook)
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Hi Dan,

That's an awsome image of the silver coin!
Those dust lanes really stand out, hope I can get something this good.

Cheers,

Justin.
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Old 08-03-2012, 07:01 PM
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alpal
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That's quite a good photo.
It's certainly better than I was able to do from my light polluted driveway.
Was it from a dark site?
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Old 08-03-2012, 07:04 PM
swannies1983 (Dan)
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Quote:
Originally Posted by tilbrook@rbe.ne View Post
Hi Dan,

That's an awsome image of the silver coin!
Those dust lanes really stand out, hope I can get something this good.

Cheers,

Justin.
Thanks Justin. I'm quite happy with the dust lanes, particularly given they are only 5min subs.

Quote:
Originally Posted by alpal View Post
That's quite a good photo.
It's certainly better than I was able to do from my light polluted driveway.
Was it from a dark site?
Cheers . Nope, not a dark site. Just in my backyard. I did use a light pollution filter tough.
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Old 08-03-2012, 07:24 PM
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CoolhandJo (Paul)
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loads of detail. nice
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Old 08-03-2012, 08:17 PM
Ross G
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So sharp.

So detailed.

A great photo Dan.


Ross.
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  #7  
Old 09-03-2012, 01:59 AM
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alpal
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Dan,
Quote:
Cheers . Nope, not a dark site. Just in my backyard. I did use a light pollution filter tough.
I used an ALP too but didn't achieve anywhere near your results.
I was using ISO 1600, 122 s subframes.
You did well.
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Old 09-03-2012, 06:26 AM
swannies1983 (Dan)
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Quote:
Originally Posted by CoolhandJo View Post
loads of detail. nice
Cheers.


Quote:
Originally Posted by Ross G View Post
So sharp.

So detailed.

A great photo Dan.

Ross.
Ta Ross. Certainly is my best picture to date.


Quote:
Originally Posted by alpal View Post
Dan,


I used an ALP too but didn't achieve anywhere near your results.
I was using ISO 1600, 122 s subframes.
You did well.
While I did use a light pollution filter, my sky is relatively dark, at least for suburbia. I'm about 30km south of the city. Anywhere but the northern sky is okish.

Processing has a big impact. Just look at my previous attempts here http://www.iceinspace.com.au/forum/s...ad.php?t=83703 I think I have come a long way
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Old 09-03-2012, 09:45 AM
Stevec35 (Steve)
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Loads of nice sharp detail there. Looks a little dark though and I notice you did it from your back yard. Rather than use a light pollution filter it might be better to experiment with gradient reduction software to get rid of the light pollution gradients.

Cheers

Steve
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Old 09-03-2012, 10:10 AM
swannies1983 (Dan)
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Thanks Steve. Yes, the background is on the darkish side. I had it a touch lighter but there was some banding (due to stacking) that I wasn't happy with so I made it darker than what I normally do.

Re light pollution filter: yeah it's something I could do. I can get up to 10 minutes @ ISO800 without skyfog being a problem. Without the filter, i would be lucky to get above 5 minutes. What's the benefit of not using the filter?
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Old 09-03-2012, 03:32 PM
Stevec35 (Steve)
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Quote:
Originally Posted by swannies1983 View Post
Thanks Steve. Yes, the background is on the darkish side. I had it a touch lighter but there was some banding (due to stacking) that I wasn't happy with so I made it darker than what I normally do.

Re light pollution filter: yeah it's something I could do. I can get up to 10 minutes @ ISO800 without skyfog being a problem. Without the filter, i would be lucky to get above 5 minutes. What's the benefit of not using the filter?
In the old days they weren't recommended for photography because they can lead to unexpected colour shifts and also block stuff that you might want to capture. I suspect the current LPR filters are probably better designed now so if a LPR filter works for you I would say go ahead and use it.

Cheers

Steve
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Old 10-03-2012, 09:23 AM
swannies1983 (Dan)
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Quote:
Originally Posted by Stevec35 View Post
Loads of nice sharp detail there. Looks a little dark though
Steve
Have now increased brightness a touch. Some banding in the background though. Anyone know how to get rid of it?

Picture here

Last edited by swannies1983; 10-03-2012 at 09:35 AM.
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Old 10-03-2012, 07:05 PM
swannies1983 (Dan)
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Added a bit of red colour to the core and tried to boost star colour.

What do you think?
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Old 11-03-2012, 02:25 PM
TrevorW
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Of all I like the first one the most
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Old 11-03-2012, 03:26 PM
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Rigel003 (Graeme)
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Quote:
Originally Posted by swannies1983 View Post
I now understand how important it is to spend just as much time processing your images as you do capturing those elusive photons.
Very true. Nice repro, Dan. Maybe still a bit dark. I do like the fact that you're pretty subtle with your processing steps.Nothing is overstated.
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  #16  
Old 11-03-2012, 05:13 PM
swannies1983 (Dan)
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Quote:
Originally Posted by Rigel003 View Post
Very true. Nice repro, Dan. Maybe still a bit dark. I do like the fact that you're pretty subtle with your processing steps.Nothing is overstated.
How's this?
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