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Coral atolls


Posted by Mary Brun on Wed Jan 06, 2021 10:38 am

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260 milion years ago the sea covered the area 
and so corals, sponges and molluscs formed a calcite base 
with their limestone remains on top of the existing porphyry layer.

The rocks that were gradually forming were layers of limestone 
and dolomites made up of hundreds of meters high,
which followed the course of the seabed and coral atolls.

65 million years ago Europe and Africa collided 
making the entire structure of the Alpine Arc emerge from the sea
and the formation of the mountainous reliefs 
that became the mountains of today due to atmospheric agents.

The Dolomites are colored red in the light of the sunset 
thanks to the presence of the prehistoric remains of corals.

Click on to see on dark background.

Canon 5D
Sigma APO 70-200 mm f/2.8 EX DG HSM
ISO 200 - 1/250s - f/8 - 137 mm  
Exposure compensation: +0.7
Polarizer 
Free hand

P.S. I only realize now that f/8 did not allow me 
to adequately focus the mountain on the right side, 
maybe an f/11 yes, as time could still be lowered by free hand, right?
Mary Brun photography - "Trees are the support of the sky, if we cut them down, the firmament will fall over us" - Indios legend 



 


Last edited by Mary Brun on Thu Jan 07, 2021 2:58 pm, edited 2 times in total.

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by david fletcher on Wed Jan 06, 2021 11:08 am
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Wonderful info Mary. The image is a delight. A play of light, colour and texture. Bravo!
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by Carol Clarke on Thu Jan 07, 2021 4:34 pm
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I like the way the light illuminates the foreground rocks which frame the background darker layers beautifully, Mary. Very interesting information on the origins of this area, and it sounds like a good place to find fossils - I used to love looking for them when I was a child, and I still enjoy finding them now!

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by E.J. Peiker on Thu Jan 07, 2021 6:22 pm
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Interesting shot and composition.  To my eye it feels a bit "heavy" on the right side.  Cropping from the right to a 4x5 aspect ratio brings it more in balance for me.  It also would take out the slight distraction at the upper right where the background just peaks through.
 

by Mary Brun on Fri Jan 08, 2021 4:51 am
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Carol Clarke wrote:
I like the way the light illuminates the foreground rocks which frame the background darker layers beautifully, Mary.  Very interesting information  on the origins of this area, and it sounds like a good place to find fossils - I used to love looking for them when I was a child, and I still enjoy finding them now!

Carol.

Thanks so much Carol  :).
Mary Brun photography - "Trees are the support of the sky, if we cut them down, the firmament will fall over us" - Indios legend 



 
 

by Mary Brun on Fri Jan 08, 2021 4:58 am
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E.J. Peiker wrote:
Interesting shot and composition.  To my eye it feels a bit "heavy" on the right side.  Cropping from the right to a 4x5 aspect ratio brings it more in balance for me.  It also would take out the slight distraction at the upper right where the background just peaks through.


Thanks E.J., I really appreciate your suggestion. :D 
I find you are absolutely right, this shot is heavy on the right side which also seem to notice is not even perfectly in focus, 
so I followed your suggestion and I must say that now I find this shot more interesting.  :D

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Mary Brun photography - "Trees are the support of the sky, if we cut them down, the firmament will fall over us" - Indios legend 



 
 

by Cynthia Crawford on Fri Jan 08, 2021 4:30 pm
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I love your story about this...and agree with E.J.- the second version looks much better. I wonder if the darks could lighten up a bit more? A great place to explore!
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by Mary Brun on Fri Jan 08, 2021 5:14 pm
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Thanks Cynthia, yes I think the darks clouds could lighten up a bit more :wink: .
Mary
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by John Labrenz on Fri Jan 08, 2021 8:26 pm
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Nice light and textures...yes,...l like the revised version better!
 

by Mary Brun on Sat Jan 09, 2021 7:16 pm
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Thank you so much John.
Mary
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