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Post by edgecrusher on Aug 21, 2020 8:43:14 GMT -8
Attached are some pics I took earlier this week while re-roofing part of our barn. I thought these might be of particular interest to some as they are very similar to the panels on a box car roof, aside from the stamping pattern and maybe thickness. Seeing how the galvanizing aged up close was pretty interesting to me. According to my father in law the roof was last replaced in 68 or 69, so that's 50ish years of exposure to the elements. Of extra interest is the rib closest to the edge. When laying these sheets down you overlap one rib to seal the edge, so that brighter rib is pretty close to how it would have looked new. The contrast is pretty neat to see side by side. Hope someone finds these useful.
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Post by edwardsutorik on Aug 21, 2020 17:00:41 GMT -8
I do. I will file these photos in my scenery color sample folder (yes, I have one).
Thank you, Evan.
If you want to convey more accurately, placing a Kodak grey card in the frame is handy, to check for color shift. The bottom two shots look a bit bluer than the top one.
Ed
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Post by edgecrusher on Aug 24, 2020 8:31:18 GMT -8
Thanks Ed,
I had to go look up what that was, I'm not much of a photographer. But I'm always happy to learn new things. And yes the colors do vary, unfortunately the clouds were very spotty that day. I too have a folder full of such photos, great for weathering reference.
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Post by edwardsutorik on Aug 24, 2020 13:36:06 GMT -8
For people who are reading this and don't know what a Kodak grey card is, it's a grey card made by Kodak.
One side is grey, the other white. If you include it in a photo, you can use the image of the card for color correction. That is, If you do a color analysis and find the card is a bit on the red side, that means that the whole photo is, too. And you can add correction values until the grey card returns as plain grey. Very handy. Sometimes.
Ed
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Post by jonklein611 on Aug 25, 2020 4:34:11 GMT -8
For people who are reading this and don't know what a Kodak grey card is, it's a grey card made by Kodak. One side is grey, the other white. If you include it in a photo, you can use the image of the card for color correction. That is, If you do a color analysis and find the card is a bit on the red side, that means that the whole photo is, too. And you can add correction values until the grey card returns as plain grey. Very handy. Sometimes. Ed Most digital photo editing suites have a grey card input for color balancing. |
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Post by thebessemerkid on Aug 27, 2020 20:47:59 GMT -8
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