 Posted 8/16/2008 8:01:03 AM
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Howdy folks...
This may be a silly question but something that cropped up today while voting so wanted to ask.
When there is a large lake that could be an ocean because it is THAT big...the horizon should still be straight...right??? There were no trees, mountains, buildings, etc...to gauge it by. Just the line of the lake. So, treat it like the ocean?
I remember a post before about a using the mountains to line up the symmetry in a lake but couldn't do it in this case.
What's the dealio??? 
Susan 
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Find pleasure in the simple things!
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Posted 8/16/2008 8:07:17 AM
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| Yes susan, even in lakes gravity hold water to the level.... ponds too! but, when looking up a shore line, it may show perspective Daniel
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Posted 8/16/2008 8:16:27 AM
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In the ideal case the horizon is straight if the lake extends over it, there are some exceptions though, like when using a wide angle lens, then the horizon could appear curved. If you then crop towards a side of the image it could look like the lake shore is inclined (in fact I put an image up to see how many would comment on that ... it worked )
If you have a problem with reality, quit taking photos and take up painting
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Posted 8/16/2008 8:30:29 AM
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Ta very much you two! Thought I was right in thinking that it should be straight!
Have a groovilicious weekend!
And Daniel..keep voting nicely on ma piccies! Me likey your scores!!!!
Susan
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Posted 8/16/2008 8:38:46 AM
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Susan, i would never be able to guess they are yours, i voted on three pics of yours from three differenr countries! You do get arround! Daniel
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Posted 8/16/2008 4:06:44 PM
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Kamikaze (8/16/2008)
In the ideal case the horizon is straight if the lake extends over it, there are some exceptions though, like when using a wide angle lens, then the horizon could appear curved. If you then crop towards a side of the image it could look like the lake shore is inclined (in fact I put an image up to see how many would comment on that ... it worked )
Kamikaze, I've enjoyed your insights and helpful posts. Thanks for your contributions to this forum!
As always, Soozie, you have asked an important question.
I live in the mountains of Colorado. I'm a long ways from the ocean. It is a rare event for me to photograph large expanses of water. But, I do understand the physics and logistics of landscapes/seascapes and camera/lens technology. In spite of my recently declared sabbatical, I find it necessary to offer some perspective to the topic. (Hopefully, the bad people frequenting the forums can hold their tongue.)
The clickable image below shows "lens barrel distortion". It's not curvature of the earth. Curvature of the earth can be seen from orbiting spacecraft. But, there is no curvature of the earth viewable from ground level. The apparent curve in the horizon is due to the wide angle lens and the contingent distortion.
I'm not a big fan of Adobe's Photoshop. But, you can correct lens barrel distortion in post processing. The image below has been "pinched" in order to correct the bending of the horizon.
Okay, I completely understand that some people will see no difference between these images. That's okay! Looking at horizons is an aquired taste.
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Posted 8/16/2008 4:14:25 PM
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| I think a picture of a level horizon is imprinted in human.... well, maybe it's learned.... but i do think we have a "need" or "preference" for a level horizon.... when it is not level, it bothers us, where this is conscious or not.... thanks for you illustration Richard. Daniel
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Posted 8/16/2008 4:20:43 PM
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Daniel (8/16/2008)
I think a picture of a level horizon is imprinted in human.... well, maybe it's learned.... but i do think we have a "need" or "preference" for a level horizon.... when it is not level, it bothers us, where this is conscious or not....
thanks for you illustration Richard.
Daniel
Good point, Daniel! Subliminal influence, for sure. Primal, most likely. Learned, by viewing a lot of landscapes/seascapes, probably. At any rate, I react very strongly to an unlevel horizon. I think acquiring a level horizon is fundamental.
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Posted 8/16/2008 4:20:53 PM
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