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07/25/2005 10:51:13 PM · #1 |
So hazy today you could look at the sun with you eyes without any problems. So I decided to take a picture of the sun. Here is one of the pictures. I also did a 100% crop - looks like a sun spot in the middle of the sun.
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07/25/2005 10:52:40 PM · #2 |
dang, that's impressive. But it might be sensor dust :-)
R.
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07/25/2005 10:59:51 PM · #3 |
Originally posted by bear_music:
dang, that's impressive. But it might be sensor dust :-)
R. |
Just took a look at the second photograph and the spot is at the same place on the sun as the first picture. No way I could take two pictures handheld and have the sensor dust stay in the same place on the sun. Here is the second picture.
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07/25/2005 11:02:40 PM · #4 |
I was teasing ya dude....
Robt.
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07/25/2005 11:06:27 PM · #5 |
Originally posted by bear_music:
I was teasing ya dude....
Robt. |
:) surprised my self keeping it that steady handheld at 200mm. I was leaning on a fence but still not stable.
I know it's not a great picture but first time I have even attempted to shot at the sun. I guessed since it was ok to look at with your eyes it would be ok with the lens. I did have a UV filter on .... :) |
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07/25/2005 11:37:48 PM · #6 |
you should really get a true solar filter, or some material to make one out of an old UV or haze filter
Baader solar filter material
James |
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07/25/2005 11:39:20 PM · #7 |
Very nice. And no shake, which is even better! :)
Have you thought about using baadar filter, or making one even, for your camera? That way you wouldn't have to worry so much if your camera and lens will be okay. Not to mention, you can look through it too!
Just an FYI, if you are ever unsure about what sun spots are showing, just pop over to SpaceWeather.com.
There you will find what sun spots can be seen from Earth, as well as what ones are on far side of Sun, aurora alerts and whole bunch of other great information. On the right side of the page, you can change the date for the archive and see what was happening at that point even. ;-)
Hope that helps.
-Christine
*laughs* I see someone beat me to the filter while I was typing! :D
Message edited by author 2005-07-25 23:40:16. |
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07/26/2005 01:35:17 AM · #8 |
Thanks for all the comments and tips. Went to Spaceweather.com that you referred to (Skyarcher) and it showed a sun spot for 7/25/00. (sun spot 791). Maybe that is the one I captured with my 70-200 lens.
I re-edited the pictures using the RAW file Hope they look better.
Message edited by author 2005-07-26 01:36:56. |
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07/26/2005 01:35:59 AM · #9 |
| if bear_music is right, then that must be one hell of a sensor dust :p |
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07/26/2005 01:39:30 AM · #10 |
Originally posted by shadow:
if bear_music is right, then that must be one hell of a sensor dust :p |
He was kidding. It's in fact a sunspot. Shows up on two different photographs at different angles but at the same spot on the sun. And Spaceweather.com shows a sun spot on 7/25/2005 in the same area of the sun as in my picture. Glad I cleaned my sensor and lens a couple days ago. :) |
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07/26/2005 01:44:03 AM · #11 |
Originally posted by SDW65:
He was kidding. It's in fact a sunspot. Shows up on two different photographs at different angles but at the same spot on the sun. And Spaceweather.com shows a sun spot on 7/25/2005 in the same area of the sun as in my picture. Glad I cleaned my sensor and lens a couple days ago. :) |
we know, just thought it was a funny comment XD |
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07/26/2005 10:01:36 AM · #12 |
FWIW, under conditions that make it comfortable to look at the sun's disc, like at sunrise or sunset with heay haze/fog, there is no danger of snapping a photo of it, except the danger that the sun will suddenly become less obscured. In many situations, that's quite possible (when it's partly obsured by moving clouds) and I wouldn't risk it. In other situations, the clouds/haze are generally present and only the sun's rising above them will lessen the effect. In the latter situations, I've often taken pics of the sun's disc. This one:
was taken under those conditions, at an effective aperture of f/45 (f/16 + 3 stops from teleconverters) at 1/320s. Some earlier shots were taken a few stops wider, and some later ones needed an additional ND8 (3-stop neutral density) filter to keep exposure down.
Edit:
To take it one step further and answer the question posed in another thread, one should ONLY USE A SPECIALLY-DESIGNED SOLAR FILTER when shooting the sun under normal conditions. If the sun is too bright to be comfortably looked at, then you need a specially designed filter. An IR filter is a really bad idea, since a lot of the sun's power spectrum is in the infrared, so you can damage the sensor and your eyes even though the visible light is reduced greatly. When in any doubt at all, use a solar filter.
Message edited by author 2005-07-26 10:33:38.
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07/26/2005 09:07:29 PM · #13 |
With some helpful information from bear_music I re-edited the raw files. I hope I achieved what Bear was suggesting. Does these look better than the darker versions?
Before -> After ->
Before -> After ->
A big thank you to Robert. I don't know if I achieved what you suggested to it's fullest. But I can count on you to give great advice.
Thanks
Scott W.
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