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First Try North America Nebula Widefield

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#1 AstroMan0

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Posted 11 August 2013 - 07:59 PM

I've been trying to get a shot of NGC 7000 for a while, and I finally got some good shots at Stellafane last night on hypered tech pan. I developed them this morning when I got home (10 minutes in D-19, as usual). If I recall correctly, the first exposure was around 20 minutes. The second was definitely 30 minutes. Both were taken with my 100mm lens at f2.8 piggybacked on my telescope. I used a Lumicon h-alpha pass filter for both shots (mostly to increase contrast; there wasn't much light pollution to filter out!). Also in the field are the Pelican Nebula, the Gamma Cygni region, some other nebulae, a meteor, and an airplane. I also have some color shots from Stellafane, but I don't currently have the equipment to process color film, so I will take the roll to Color Services down the street for processing and printing.

Clear Skies,
Noah

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#2 AstroMan0

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Posted 11 August 2013 - 08:01 PM

Here is the second one:

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#3 THEPLOUGH

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Posted 12 August 2013 - 05:38 AM

Great shots Noah... :bow: :waytogo:... What are those lines at the bottom of #2... :question:

#4 AstroMan0

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Posted 12 August 2013 - 06:27 AM

Thanks!
I assume that the lines were the result of a passing airplane; I cannot think of what else could have caused them.

Noah

#5 THEPLOUGH

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Posted 12 August 2013 - 06:03 PM

:bow:

#6 Nebhunter

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Posted 18 August 2013 - 01:31 PM

Definitely a jet - lights are blinking on/off. Nice work here. A lot of detail. Is there a larger version? I like to compare details between hypered BW and colour films.

igor

#7 AstroMan0

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Posted 18 August 2013 - 07:01 PM

Thanks Igor!
Yes, there is a larger version-a much larger version. Even zoomed in all the way, I can't see the film grain- I run into scanner noise instead (I think). I did a 12800 dpi scan, and the files are 22.1 mb, I believe. I don't have a website to post the photos on; is there any way I could send them to you?

#8 Nebhunter

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Posted 19 August 2013 - 12:29 PM

PM sent

#9 Michal1

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Posted 20 August 2013 - 05:03 PM

Noah, I'm also interested in seeing the photos in a higher resolution. To upload the images, you can use services like imageshack, dropbox, or create your own gallery, e.g., on flickr.

I recommend not to scan at such hight resolution. I'm sure the 12800 DPI is achieved only by digital resizement made inside the scanner. The scanner can't see such small details on the film similarly as we can't see atoms by our eyes. Even the high-end dedicted film scanner Nikon 9000 ED has the maximal true resolution of 4000 DPI. The digital interpolation brings nothing more than bigger files, which are difficult to manipulate with.

#10 AstroMan0

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Posted 24 August 2013 - 08:32 AM

Hi Michal,
I uploaded them to Flickr, and resized them down to about 3 mb. You can see them at the links below:
http://www.flickr.co...in/photostream/
http://www.flickr.co...in/photostream/






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