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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 10 Sep 2011 (Saturday) 12:28
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Xeon Lights

 
TheReal7
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Sep 10, 2011 12:28 |  #1

Last night's aurora activity was high. I had to get out with the camera. I was concerned the almost full moon light would be a problem but it ended up being a blessing. So I hit the roads not really having a destination. I started driving around aimlessly trying to think of spots near home. I wasn't up for a long drive. Eventually I happened to get close to a spot and when I did I remembered it. It is a pond that is at the end of a deep rutted trail. You have to drive outside of the ruts or you'll hang up your car. A truck would have no problem. This is a great location and I don't know why I don't come here more often,. It's only 10min from home. I spent about 2 hours there and packed up. There is always the chance of some better activity then what I got but I didn't feel like saying up all night. Especially since I plan to be shooting a long day tomorrow. I was quit surprised how low the water is compared to the last time I was there. I would say the water is about 3 feet lower. Which gave me a new perspective on these 3 logs.

These photo were taken with natural light. The bright moon lit up the surrounding just enough so I could get some acceptable shots.

Exposure 30s | f/3.5 | 10mm | ISO500

IMAGE: http://farm7.static.flickr.com/6063/6131756103_3476d2cdd4_z.jpg

This panorama is made from 16 portrait orientation photos. I was so close to the logs that in order to get some sky I had to shoot portrait. This took over 8 min to capture 16 exposures @ 30s.

Exposure 30s | f/3.5 | 10mm | ISO500

IMAGE: http://farm7.static.flickr.com/6195/6131827641_bbcafc30b7_b.jpg

---------

Just show how low the water is, here is a shot from this same pond 1 year ago:

IMAGE: http://farm5.static.flickr.com/4149/5022256154_ff58053650.jpg

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boguz
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Sep 15, 2011 15:11 |  #2

I like the panorama a lot!! :D Nice job!!!




  
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iseestars
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Sep 15, 2011 19:21 |  #3

Scott,
Can you give us the particulars on how you did it? A wonderful panorama!


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Glen
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cyberon
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Sep 15, 2011 21:21 |  #4

Very good work!


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TheReal7
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Sep 15, 2011 23:08 |  #5

Thank you all very much!

iseestars wrote in post #13110133 (external link)
Scott,
Can you give us the particulars on how you did it? A wonderful panorama!

What would you like to know?


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babel_fish
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Sep 15, 2011 23:12 |  #6

Gorgeous!


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iseestars
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Sep 15, 2011 23:18 as a reply to  @ TheReal7's post |  #7

Scott,
What did you use to stitch it together? What other processing was done besides the stitching? Were you using a special panorama head? Never having done this I just wanted some-more info.
Godspeed,
Glen


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TheReal7
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Sep 15, 2011 23:29 |  #8

Thank you Mike.

iseestars wrote in post #13111283 (external link)
Scott,
What did you use to stitch it together? What other processing was done besides the stitching? Were you using a special panorama head? Never having done this I just wanted some-more info.
Godspeed,
Glen

No problem. For stitching I use a program called PTGui. Other processing I brightened up the photo a bit, added some contrast and saturation. Not much was needed. Here is my tripod setup.
http://www.flickr.com/​photos/thereal7/602468​5424/ (external link)

This system works great for panoramas. I like to overlap my images about 35-45% and my tripod head level. Any tilt can create major issues when stitching.


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iseestars
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Sep 16, 2011 16:41 |  #9

Scott,
Thanks for the information. Great work!
Regards


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spinney
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Sep 16, 2011 19:42 |  #10

great stuff as always Scott:)


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ArcticShooter
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Sep 18, 2011 10:15 |  #11

Damn, that panorama is just excellent


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David ­ Ransley
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Sep 18, 2011 16:30 |  #12

Scott, I notice the ISO 500. I assume we are talking about the ISO setting on the camera? Is this correct, 500 ?


DRH

  
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TheReal7
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Sep 20, 2011 19:54 |  #13

Thank you all very much for the comments! :D

David, yes you are correct. I used ISO 500. IMHO ISO past 400 on the 40D starts to get bad. I try not to shoot past 400 when possible (exceptions are low light indoor events). One reason why I wish I had a 5DII. Even which the moonlight I was getting too underexposed images. So I bumped to ISO 500 so the exposure was a little better. The end result is very usable. More so then the more under exposed shots at ISO 400.


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David ­ Ransley
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Sep 21, 2011 14:57 |  #14

TheReal7 wrote in post #13136222 (external link)
Thank you all very much for the comments! :D

David, yes you are correct. I used ISO 500. IMHO ISO past 400 on the 40D starts to get bad. I try not to shoot past 400 when possible (exceptions are low light indoor events). One reason why I wish I had a 5DII. Even which the moonlight I was getting too underexposed images. So I bumped to ISO 500 so the exposure was a little better. The end result is very usable. More so then the more under exposed shots at ISO 400.

I read a good article once on the 40D and setting ISO one higher than the actual stop, example 400 ISO. The 500 setting is actually an in camera modification and not a true ISO, but the results speak for itself. The test showed that pushing in camera like you did is fine for one increment, but I read on this forum that some prefer doing any pushing themselves. Hence they stick to 100, 200, 400 and so on.


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TheReal7
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Sep 22, 2011 19:08 |  #15

David Ransley wrote in post #13140461 (external link)
I read a good article once on the 40D and setting ISO one higher than the actual stop, example 400 ISO. The 500 setting is actually an in camera modification and not a true ISO, but the results speak for itself. The test showed that pushing in camera like you did is fine for one increment, but I read on this forum that some prefer doing any pushing themselves. Hence they stick to 100, 200, 400 and so on.

Good points. One I'd make is that all settings are in-camera modifications. You're simply just controlling the sensor. Essentially the ISO could just as easily go from 0-100,000. The ratings they have now are simply to translate from film ratings and familiarity. If cameras never existed before digital there would be no 100, 200 400, 800 etc. Just a number from 0 to what ever. Same with other settings. So my point would be that shooting at 500 means the sensor is just a little bit more sensitive. ISO 800 is too noisy for me and 400 was too underexposed. Choosing 500 increased the exposure a little and still kept the noise under control for the exposure I was getting. You don't have to be limited to the doubling factor. (100 200 400 etc...) Anyway, that is simply based on my own experience.

:cool:


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