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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 03 Nov 2010 (Wednesday) 18:54
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Orion Nebula, no scope...

 
MrVH
Mostly Lurking
11 posts
Joined Oct 2010
     
Nov 03, 2010 18:54 |  #1

So I gave the Orion Nebula another go last night.

This is a composite shot with the Rebel T2i with two lenses, a 50mm prime and a 55-250mm @ 235mm. (only the Orion Nebula area is composited)

29 shots with the 50mm @ f/1.8, 5sec. exposure, ISO1600. 19 Darks, 20 Bias.
32 shots with the 235mm @ f/5.6, 1sec. exposure, ISO 3200. 20 Darks, 21 Bias.

Total Exposure time of 2min57sec.

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Also tried out my DIY barndoor tracker again and took this image from my deck. Unfortunately there were powerlines in the way and a few thin hazy clouds.

18-55mm lens at 18mm f/3.5, ISO800, 299sec exposure. I manually turned the tracker 90ยบ every 15 seconds.

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May be another clear night tonight to try some more experimenting!

Canon Rebel T2i, 18-55mm IS, 55-250mm IS, 50mm f/1.8

  
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mtbdudex
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Nov 03, 2010 19:37 |  #2

I like this, low cost experimenting!
Post a pict of your barn door tracker.

I heard the T2i can go higher ISO than my T1i for long exposures, I use 800 max...you used 3200 wow, sweet!

did you do some star effects PP wise to get those spikes or that came outta camera?
I've read (here or another forum) people put black fishing line cross wise on their lens and will do that effect, not tried it myself.


Mike R, P.E. ...iMac 27"(i7), iPad2, iPhone5s, 24" iMac, AppleTV(160), MacBook
Canon: 70D, T1i + lens:70-200 L f2.8 IS II / TC 1.4x 2x / 15-85 / f1.4 50 / UWA 11-16 Tokina
FEISOL tripod CT-3441S + CB-40D Ball Head, iOptron EQ tracker
My top 10 in Astrophotography. . .DIY acoustic panels (external link) . . APOD Aug-5-2011 (external link)

  
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MrVH
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Nov 04, 2010 00:45 as a reply to  @ mtbdudex's post |  #3

Ya, the experimenting is fun, and at this price it brings a certain satisfaction as well :) .

This is the only picture I have of the finished barndoor tracker right now (and I REALLY need to get a finderscope to mount on it)...

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I did have a double balljoint mount I had from a RAM cellphone/GPS holder on it, but it was not very stable at all... lots of flex in it... so I took the double ball joint mount my dual suction vehicle camera mount has, that I use when I go 4-wheeling up in the mountains. It's metallic and it is MUCH more sturdy, no flex whatsoever. You can't see it well in that picture, but I took it from this unit...

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


The T2i can go up to ISO12800, but only in the "Program" mode, in standard use it still can go up to ISO6400 although it is very noisy and not sure if it's really that usable for this purpose so I have just been limiting myself to ISO3200.

And the star effects I've been doing in PP. I was doing it manually but then I came across this collection (external link) of PS "actions" for sale so I went ahead and purchased them... very handy :) .

Thanks for the comments!

Canon Rebel T2i, 18-55mm IS, 55-250mm IS, 50mm f/1.8

  
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scottishguy
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Joined Nov 2010
Location: Scotland
     
Nov 30, 2013 05:41 |  #4

MrVH wrote in post #11221795 (external link)
Ya, the experimenting is fun, and at this price it brings a certain satisfaction as well :) .

This is the only picture I have of the finished barndoor tracker right now (and I REALLY need to get a finderscope to mount on it)...

IMAGE NOT FOUND
| Byte size: ZERO | Content warning: NOT AN IMAGE


I did have a double balljoint mount I had from a RAM cellphone/GPS holder on it, but it was not very stable at all... lots of flex in it... so I took the double ball joint mount my dual suction vehicle camera mount has, that I use when I go 4-wheeling up in the mountains. It's metallic and it is MUCH more sturdy, no flex whatsoever. You can't see it well in that picture, but I took it from this unit...

IMAGE NOT FOUND
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


The T2i can go up to ISO12800, but only in the "Program" mode, in standard use it still can go up to ISO6400 although it is very noisy and not sure if it's really that usable for this purpose so I have just been limiting myself to ISO3200.

And the star effects I've been doing in PP. I was doing it manually but then I came across this collection (external link) of PS "actions" for sale so I went ahead and purchased them... very handy :) .

Thanks for the comments!

Think you're wrong about the ISO only going up to 12,800 in program mode only.
Hit the ISO button on the top and turn the dial until you have selected the "H".
If the "H" isn't showing, go into the menu and turn on "extended ISO" and you can use it on any mode.

Really liking your capture of Orion and the Nebula.


http://bighugelabs.com …0/ffffff/330826​48@N00.jpg (external link)

  
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Orion Nebula, no scope...
FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
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