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Go Back   IceInSpace > Beginners Start Here > Beginners Astrophotography

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  #21  
Old 05-02-2018, 10:02 PM
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You had better credit her when you post!
What do you think... I would be so very happy my description would probably take a page or two.
Alex
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  #22  
Old 05-02-2018, 10:06 PM
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I am in Sydney and been out trying to find the Seagull Nebula thru my 80 mm binos... No luck so far so I ask can I hope to see this object with the binos or is it impossible given the sky glow?
Alex
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  #23  
Old 06-02-2018, 06:20 AM
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Quote:
Originally Posted by xelasnave View Post
I am in Sydney and been out trying to find the Seagull Nebula thru my 80 mm binos... No luck so far so I ask can I hope to see this object with the binos or is it impossible given the sky glow?
Alex
PP

You certainly have some serious binos.
Can you rig up a camera on one side?

Guessing here, but on a really clear night, and the binos supported somehow, you may be able to see it, however I doubt it.

As an example, through my 85mm scope I can't see faint nebula at all, until after a few minutes exposure.
And even then I use high gain to find and centre.

I haven't done it yet, but I am prepared to NOT see the Seagull properly until after all the processing.
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  #24  
Old 06-02-2018, 07:36 AM
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Thanks Peter.
Alex
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  #25  
Old 11-02-2018, 04:05 AM
that_guy (Tony)
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Way to choose a difficult target! so big but diffuse, no way I could have imaged this back home. Taken merely hours ago at wyaralong dam. 18x 300min on unity gain using asi1600mc-c.

Full Res Image here
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  #26  
Old 11-02-2018, 05:48 AM
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Incredibly good.
Great colour, good focus...
You have nailed it!

Just learn how to do Mosaics now.

ps: 300min exposures are a bit long :-)
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  #27  
Old 11-02-2018, 10:20 AM
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ahhhhhhhhhh peter, it was 4 am. cut me some slack
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  #28  
Old 11-02-2018, 05:37 PM
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Really nice Tony. Nice colour and focus.
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  #29  
Old 13-02-2018, 12:14 PM
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I might have said something about success and failures.

Yesterday I hopped in the van being frustrated with the cloud parked over my house.
I drove out west for 5 hours and the cloud followed me. It didn't matter how fast I drove, the cloud kept up.
So being sneaky, I turned south and headed up on top of the main range.
Beautiful clear blue sky and that cloud was way of in the distance. I had lost it!
So I set up.
Had a cold beer, dinner and a quick afternoon nap.
Then I looked up...
You have got to be kidding! The cloud found me and this time it came in low for a full frontal attack. It actually started to rain.

So I packed up and drove home without so much as a happy snap.
And it rained all the way home.
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  #30  
Old 13-02-2018, 01:17 PM
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Sorry to hear so much effort went unrewarded.
I go North to morrow it should follow me now so you may get a chance.
Good luck.
Alex
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  #31  
Old 13-02-2018, 04:59 PM
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Definitely not a target for an unmodded camera, just not picking up much red at all. Even after an hours worth of 2min subs @iso1600 and the 10" newt, it's only just picking up the gulls head. Time to get the screwdrivers out and rip that IR filter out of my canon (or buy one of those asi1600mc's)
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  #32  
Old 13-02-2018, 05:23 PM
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Nevertheless a decent image Rick.
I dont think I will even bother I thought the eight inch might do it but I think I will go something else if the clouds allow.
Good image.
Alex
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  #33  
Old 13-02-2018, 07:54 PM
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Thanks Alex, there are plenty of objects that are within the capabilities of an unmodded dslr, faint emission nebulas are not.
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  #34  
Old 14-02-2018, 07:08 AM
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Good one Rick

I think it's a great image and achievement.

It doesn't hurt to push the limits, that's how we learn.

And as to a cooled camera, start saving! Definitely worth the expense.
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  #35  
Old 14-02-2018, 07:53 AM
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Interesting to see Rick. And that's a beautiful sharp shot.
Let Gary Honis lead the way. I found his mod instructions excellent when I did my 550D
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  #36  
Old 14-02-2018, 09:12 AM
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Quote:
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Interesting to see Rick. And that's a beautiful sharp shot.
Let Gary Honis lead the way. I found his mod instructions excellent when I did my 550D
Thanks Chris, I've got guiding and focus down pat, just not getting all the data. Funny that you mention Gary Honis, I have his screw sheet on my desk and a spare 1100d ready to pull apart. Lots of screws and ribbon cables but the process looks simple enough.
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  #37  
Old 14-02-2018, 09:56 AM
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Thanks Chris, I've got guiding and focus down pat, just not getting all the data. Funny that you mention Gary Honis, I have his screw sheet on my desk and a spare 1100d ready to pull apart. Lots of screws and ribbon cables but the process looks simple enough.
Careful with those ribbon cables....take extra care! Some good quality soft tip tweezers and very steady/gentle hand is required.

I sent a 550D to heaven because of one of those pesky cables.
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  #38  
Old 14-02-2018, 05:48 PM
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+1 about the ribbon cables. Make sure you have all the tools described. I had one of this plastic flippy things (technical term) that you use to fix mobile phones etc. Really useful for the cables etc. Or a guitar pic

Edit: got my first good weather to start tonight!!

Last edited by ChrisV; 15-02-2018 at 09:32 PM.
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  #39  
Old Today, 07:40 AM
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Finally one clear night.
The first and last 'guided' image from the 12" reflector.
This required balancing and collimation at the specific attitude.
A total hassle.

This scope has f/5 focal ratio and the FOV is 30' by 40'.
As such could only capture the head.

The mirror is badly corroded so I was happy for anything.

30 of 240sec subs. (120 min)
20 darks, bias and flats
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  #40  
Old Today, 08:19 AM
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Great to see you got a result, and it's not too shabby at that. Sounds like a bit of work to control that beast.
I guess that's why people steer away from truss tube and collapsible dobs as eq imaging conversions.
My 10" is a solid tube and easy to slide up and down and rotate to tweak the balance if needed. Collimation changing I'm not sure about, my 10" is stable in all orientations, but I do have the mirror firm in its cell and use a long (beefed up) dovetail bar to keep the tube rings wide apart.
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