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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 31 Dec 2009 (Thursday) 21:07
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The Official Shoot the Moon Thread

 
passpanda
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Sep 11, 2016 21:57 |  #4096

Took a shot at it while walking in the park tonight. Hand stabilized on a cement bench. 100% crop. Hoping to try again when it's a full moon and I have a tripod.


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Inspeqtor
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Sep 11, 2016 23:29 |  #4097

Ballen Photo wrote in post #18124231 (external link)
FstopMiami123 wrote in post #18123379 (external link)
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I don't know how many folks here noticed the jet superimposed over the moon, but I thought it was pretty cool. :-)

Yes I did see the jet... what makes you think it was superimposed?


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TCampbell
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Sep 12, 2016 09:06 |  #4098

Inspeqtor wrote in post #18124983 (external link)
Yes I did see the jet... what makes you think it was superimposed?

You'd think this sort of thing would be rare... but it's amazing how often an aircraft or satellite ends up in an image even when the image has a rather tiny field of view.




  
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Inspeqtor
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Sep 12, 2016 09:34 |  #4099

TCampbell wrote in post #18125308 (external link)
Inspeqtor wrote in post #18124983 (external link)
Yes I did see the jet... what makes you think it was superimposed?

You'd think this sort of thing would be rare... but it's amazing how often an aircraft or satellite ends up in an image even when the image has a rather tiny field of view.

So you agree the jet was superimposed into the picture? How can you tell so easily? I need to learn!


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Ballen ­ Photo
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Sep 12, 2016 10:37 |  #4100

Inspeqtor wrote in post #18124983 (external link)
Yes I did see the jet... what makes you think it was superimposed?

At 1/60th shutter speed, and F/5.6, and if he were set up near the landing and take off path close to the airport, I suppose he might have timed it just right and got that shot. My inference was merely that the plane was lined up with the moon, not necessarily that it was manipulated.
I just happen to think it was a neat shot either way.


The Captain and crew finally got their stuff together, now if we can only remember where we left it. :cool:

  
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Fireblade2K7
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Sep 12, 2016 10:46 |  #4101

My moon shot from a few nights ago handheld and image stabilized.

This is my first attempt at this kind of photography with my very aged Canon 400D...hopefully I'll be able to grab somemore when we next have a full moon.


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Inspeqtor
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Sep 12, 2016 10:53 |  #4102

Ballen Photo wrote in post #18125400 (external link)
At 1/60th shutter speed, and F/5.6, and if he were set up near the landing and take off path close to the airport, I suppose he might have timed it just right and got that shot. My inference was merely that the plane was lined up with the moon, not necessarily that it was manipulated.
I just happen to think it was a neat shot either way.

Thank you


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TCampbell
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Sep 12, 2016 13:08 |  #4103

Inspeqtor wrote in post #18125326 (external link)
So you agree the jet was superimposed into the picture? How can you tell so easily? I need to learn!

I see no reason to think it was added to the image. My point was that these sorts of things happen more often then one might guess and that there probably wouldn't have been much need to composite such an image.

I live in the flight path of a major airport. Based on the prevailing winds, my home is usually on the "approach" side (not the departure side). For me, this sort of shot would require facing toward the north east (and the moon is never in that location). But for someone who lives in a location where the moon is the correct direction, they could probably gets lots of images like this one.

I can often spot the manipulated images when the scale doesn't match. I know the moon is 1/2º from edge to edge. Some easy trig (usually involving the tangent function) can tell you what the "angular" size of an object will be based on knowing it's linear dimensions, and you can back into determining how far away the camera would have needed to be to get a foreground object to fit into a background object at the scale depicted. Sometimes when I do this, the math shows the camera would have needed to be many many miles away (so far away that atmospheric haze or the curvature of the Earth would have been a problem. It's fairly easy to determine what focal length lens would have been needed to capture an image when an object with any known dimensions (angular or otherwise) are in the image. This assumes the image is "as is" out of the camera and wasn't cropped.

It's also possible to spot compositions based on exposure values. In astrophotography, some objects are "bright" and others are "dim". Bright objects need fast exposures... dim objects need exposures which are anywhere from many seconds long to many minutes long. When a "bright" object is in an image with a "dim" object, it's red flag that the image is a composite. There's nothing wrong with a composite if the person who made it discloses that it's a composite. It's another matter when they try to pass it off as a photograph.

A personal could certainly create a convincing composite image that doesn't violate any of the rules such that it might not be identified as a composite. But usually a person would need a fairly in-depth understanding of all the nuances in order to pull this off... and if they know that much, then they probably know enough to just take the "real" shot and not need a composite. With that said... from time to time people steal the work of other astrophotographers (often making some adjustments so it won't be obvious). I guess that should be no surprise since other areas of photography suffer from the same problem of image plagiarism.




  
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pulsar123
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Sep 12, 2016 13:18 |  #4104

My first attempt at Moon panorama, from last night shooting:

IMAGE: https://c4.staticflickr.com/9/8374/29012986283_a22e574b5e_c.jpg
IMAGE LINK: https://flic.kr/p/LcM9​2r  (external link) PanoMoon (external link) by SyamAstro (500,000 views - thank you!) (external link), on Flickr

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Sep 12, 2016 13:31 |  #4105

pulsar123 wrote in post #18125570 (external link)
My first attempt at Moon panorama, from last night shooting:

QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/LcM9​2r  (external link) PanoMoon (external link) by SyamAstro (500,000 views - thank you!) (external link), on Flickr

Five fields, 1000 frames per field, 1.3 Mpixels camera GCMOS01200KA, 6" f5 Newtonian, 1" per pixel. Stacking with Registax 6, stitching with Hugin, sharpening and spatially variable gamma correction in PS.

amazingly detailed.


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Sep 12, 2016 16:13 |  #4106

pulsar123 wrote in post #18125570 (external link)
My first attempt at Moon panorama, from last night shooting:

Nicely done!

Very best,


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Sep 12, 2016 17:56 |  #4107

Ballen Photo wrote in post #18124231 (external link)
I don't know how many folks here noticed the jet superimposed over the moon, but I thought it was pretty cool. :-)


It happens quite often because of where I live, I am about 4 miles east of Miami International and right below one of their flightpaths. When the wind is right we can get 30-40 planes landing and taking off during the late afternoon early evenings, if the moon and clouds cooperate you get what I posted..... I am not that good, although I do get lucky every now and then

Armando


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Sep 12, 2016 18:05 |  #4108

FstopMiami123 wrote in post #18125844 (external link)
It happens quite often because of where I live, I am about 4 miles east of Miami International and right below one of their flightpaths. When the wind is right we can get 30-40 planes landing and taking off during the late afternoon early evenings, if the moon and clouds cooperate you get what I posted..... I am not that good, although I do get lucky every now and then

Armando

Thanks for the explanation. :-)


The Captain and crew finally got their stuff together, now if we can only remember where we left it. :cool:

  
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FstopMiami123
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Sep 12, 2016 18:15 as a reply to  @ Ballen Photo's post |  #4109

Please note that Luck (for me ) played the major role in that particular shot. :)

Armando


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pulsar123
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Sep 12, 2016 18:23 |  #4110

MalVeauX wrote in post #18125738 (external link)
Nicely done!

Very best,

jwcdds wrote in post #18125588 (external link)
amazingly detailed.

Thanks!


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