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Join our unique resource for Olympus Four Thirds E-System DSLR and Pen and OM-D Micro Four Thirds photographers. Show your images via our free e-group photo gallery. Please read the e-group.uk.net forum terms and conditions before posting for the first time. Above all, welcome!


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Foto Fair Post your photos for friendly, non-critical feedback. This is the place to show pictures if you aren't yet ready for full-blooded critique, or simply want to share an interesting picture with other e-group visitors.

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  #1  
Old 9th May 2016
birdboy birdboy is offline
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Whirlpool Galaxy

Two galaxies in one

M51 Whirlpool Galaxy was the first galaxy to be classified as a spirial galaxy in 1773 by Charles Messier

The bit to the left is a dwarf galaxy NGC 5195 and is a separate galaxy.

Taken with 300mm F4 60 secs ISO800 and stacked in DSS and processed in Startools.

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  #2  
Old 9th May 2016
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Re: Whirlpool Galaxy

a cracking result, did you have this on a tracking device to maintain register to enable stacking?
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  #3  
Old 9th May 2016
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Re: Whirlpool Galaxy

Quote:
Originally Posted by brian1208 View Post
a cracking result, did you have this on a tracking device to maintain register to enable stacking?
Thanks Brian yes I used the Star Adventurer I think I took about 115 frames 36 of which were after the street lights go out.
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Old 9th May 2016
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Re: Whirlpool Galaxy

Really smart shot. Didn't know that was possible with just a lens, even the 300mm.
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  #5  
Old 9th May 2016
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Re: Whirlpool Galaxy

Great capture.

Wee Man
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Old 10th May 2016
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Re: Whirlpool Galaxy

That is seriously impressive for a camera rather than a telescope and specially designed sensor. Keep posting more like this!
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Old 10th May 2016
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Re: Whirlpool Galaxy

Super shot.
I am kind of following in your footsteps. I got myself a guide camera and low cost guide scope last week but not had chance to use it yet on my Star Adventurer. Your shot makes me want to get out and give it a go. What exposure length did you use and did you use phd2 to do the tracking?
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Old 10th May 2016
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Re: Whirlpool Galaxy

shot... am dead envious. I know cost is relative, but your astro posts prove you don't need a zillion set-up to get results.

Thanks for sharing
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Old 10th May 2016
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Re: Whirlpool Galaxy

Smashing shot. A couple of questions:

1. How much of a crop is this? I imagine the galaxy would be pretty small in the frame, even with the 300mm. After all, 300mm is still peanuts compared with light years

2. How natural is the colour?

Thanks for sharing, keep them coming.

John
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Old 10th May 2016
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Re: Whirlpool Galaxy

Stunning shot

Jim
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Old 10th May 2016
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Re: Whirlpool Galaxy

If you missed this years transit then you wil have to wait until 2019.

In the mean-time you can find helpful info on how to hone your astro-photo skills here http://www.bbc.co.uk/news/technology-33736571
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Old 10th May 2016
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Re: Whirlpool Galaxy

Quote:
Originally Posted by Ralph Harwood View Post
That is seriously impressive for a camera rather than a telescope and specially designed sensor. Keep posting more like this!
Thanks Ralph. I do have a CCD astro camera but I cannot get anywhere near the same results with it as I can with the EM1 and 300mm f4. Focusing with the EM1 and Olympus Capture is a dream driving the focus ring electronically and thereby having rock steady image. Exposure control with the EM1 is so much more controlled also. The only draw back is the magnification I am at the limit with the 300mm for the deep sky objects I would like to have a go at. I am also itching to get to a really dark sky region to see what improvements I can get then, I think what you see currently is limited by the polluted skies rather than the lens and sensors I am using.
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  #13  
Old 10th May 2016
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Re: Whirlpool Galaxy

Quote:
Originally Posted by wornish View Post
Super shot.
I am kind of following in your footsteps. I got myself a guide camera and low cost guide scope last week but not had chance to use it yet on my Star Adventurer. Your shot makes me want to get out and give it a go. What exposure length did you use and did you use phd2 to do the tracking?
Hi Dave I have stopped using the guide camera setup preferring to stay with 60 sec exposures. I can now set up my tripod with the Star Adeventure with EM1 and 300mm in about 20 mins. I focus using Olympus Capture then use the in camera time lapse function to take about 120 60sec exposures.
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Old 10th May 2016
birdboy birdboy is offline
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Re: Whirlpool Galaxy

Quote:
Originally Posted by Bikie John View Post
Smashing shot. A couple of questions:

1. How much of a crop is this? I imagine the galaxy would be pretty small in the frame, even with the 300mm. After all, 300mm is still peanuts compared with light years

2. How natural is the colour?

Thanks for sharing, keep them coming.

John
Thanks John Yes this is a severe crop almost down to 1:1. As you have identified M51 is very small in the frame for a 300mm lens. I have tried using the digital teleconverter taking RAW + SJPEG but the jpegs are poor to process and I have not yet got a good run with clear skies.

I try to get as true colour as I can by looking at proper astro images, but somewhere between art and science. I have some degree of control of colour in Star Tools using their scientific tool with normally green bias reduction.
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OM-D E-M1, 12-40 f2.8 Pro, Tamron 14-150mm f5.8, E5, E3, Zuiko 50-200mm SWD, Zuiko 12-60mm SWD, Zuiko ED 70-300mm f5.6, 50mmf2, Zuiko ED 9-18mm f5.6, Sigma 50-500mm f6.3, EC14, EC20, RM-1, VA-1
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Old 10th May 2016
birdboy birdboy is offline
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Re: Whirlpool Galaxy

Quote:
Originally Posted by Wally View Post
If you missed this years transit then you wil have to wait until 2019.

In the mean-time you can find helpful info on how to hone your astro-photo skills here http://www.bbc.co.uk/news/technology-33736571
Hi Wally thanks for the link. I do not what to process images taken with high powered telescopes, the fun bit is using mirroless camera to take what some think you should not be able to do. The problem with astophotography is that there are a great many pieces of software to edited your images most are out of what I am prepared to pay; at the moment. There is also considerable debate about getting the faint pixels out of your RAW file which is way above my head, some of that debate is nasty IMHO as I think the result should speak for the image.

I did miss the transit partly because is was very cloudy and my tripod is setup for focusing on M51.
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