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10/08/2007 04:58:03 PM · #1 |
Just saw another photo with two moons. Still can't explain why.
There's probably a very simple explanation for this,
but I just don't know it. Anyone? |
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10/08/2007 05:01:46 PM · #2 |
Shooting through a window is an easy way to make it happen. Cheap glass too. Would help if we knew the shooting conditions a little more?
If your trying to shoot the moon just so you know to capture detail you need to use a fast shutter speed not a slow one. My old fuji shot around 1/320 @ f/22.
Its kinda cruddy but heres the 3 megapixel cameras result.
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10/08/2007 05:07:24 PM · #3 |
Ghost image. Notice how the second image is in a spot in the frame that's opposite the position of the "real" moon? That's the give-away. It happens because of internal reflections in the optical system.
Some lenses are very prone to this, others much less so. If you're using a UV filter, try removing it. It may make a big difference. |
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10/08/2007 05:09:03 PM · #4 |
bump
Message edited by author 2007-10-08 21:43:23. |
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10/08/2007 05:10:00 PM · #5 |
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10/08/2007 05:10:53 PM · #6 |
Shooting conditions: on a tripod in the garden.
Camera: Canon EOS-20D
Lens: Canon EF 70-300mm f/4.5-5.6 DO IS USM
Location: At home
Date: Sep 26, 2007
Aperture: f/8
ISO: 400
Shutter: 1/6 s
I've made some better moon photos with it (see e.g. //www.pbase.com/hajeka/maansverduistering
No moon reflection here.
Is it just the low shutterspeed I used? |
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10/08/2007 05:12:41 PM · #7 |
Originally posted by hajeka:
Is it just the low shutterspeed I used? |
That contributed. If the "real" moon had been normally exposed, the ghost would have been much fainter, but still there. Do you have a UV filter on the lens? |
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10/08/2007 05:16:04 PM · #8 |
It seems that all of you can reply faster than I can type :-)
Yep, I'm always having a UV filter on. Much easier to clean than the lens. I'll give it a try without (when we have a moon , can't see one now) |
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10/08/2007 07:55:26 PM · #9 |
Kirbic's spotted it then yea the UV filter is probably the problem. and my comment on the shutter speed is only if your trying to photograph the moon and actually see it.
As kirbic said that would also make the ghost moon even fainter. Also a second tip from me is use centered autofocus or on an slr u can manually focus to infinity. Just dont manually focus to infinity with a point and shoot. |
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10/08/2007 09:52:41 PM · #10 |
| I have a question about this subject. As I am still obviously a beginner when it comes to photography. I really would love to know how to make the moon appear in a photo the actual size that you can see it. Whenever I have tried to photo the moon I get a little white dot in a black photo. What am I doing wrong? |
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10/08/2007 10:00:51 PM · #11 |
Originally posted by cdallen14:
I have a question about this subject. As I am still obviously a beginner when it comes to photography. I really would love to know how to make the moon appear in a photo the actual size that you can see it. Whenever I have tried to photo the moon I get a little white dot in a black photo. What am I doing wrong? |
I swore i was going to bed hehe. I have limited acces outside of work to a PC these days.
Anyways My Image the second post looks like this....
That was taken at 304mm. SO prepare to break out a 300mm+ equivalent focal length and i do believe that image was cropped down a bit. The image is cruddy due to it being a 3 megapixel camera and a cheap superzoom lens. I never got a chance to reshoot this with the K10D.
The main thing is stop the aperture down, Center AF or Infinity Manual AF, SHoot it like you shoot the sun, sunny 16 this will have you with a fast shutter speed not a slow one first msitake i and most people make.
Manual mode is the best stop the aperture all the way down and play with the shutter speed. The camera has no clue how to meter this shot.
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10/08/2007 10:05:46 PM · #12 |
| Thank you I will try that the next time we have a good moon. nothing but rain tonight.. Again thank you! |
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