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 Replies: 14 / Views: 1,379 |
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Pillar of the Community
United States
4038 Posts |
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Bedrock of the Community
United States
62064 Posts |
Great images Ray. I've been looking for these exact images to add to my educational image collection. The 3-D one tells the whole story on machine damage devices. Thanks for this.
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Pillar of the Community
 United States
4038 Posts |
Coop...feel free to use these in your educational DVDs...Ray
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
United States
6478 Posts |
How in the world did you capture that image?
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Pillar of the Community
Canada
4227 Posts |
Those are incredible images!
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Pillar of the Community
921 Posts |
WOW! What amazing pics! Would love to find out what you used to take these photos also.......  |
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Bedrock of the Community
United States
62064 Posts |
Here is the shot I've been waiting for:  |
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Pillar of the Community
United States
4038 Posts |
Excellent Coop! This was a good subject for your description: a single-struck, flatly-struck, dramatic example.
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Pillar of the Community
United States
4809 Posts |
I love the synergy from the collaboration! If only more things worked this way! Competition kills quality.
Very cool images and presentation of information!
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Pillar of the Community
United States
740 Posts |
Nice 3D image  Looks like it might be laser 3D imaging? Unless you took the time to bumpmap it. But it looks more like scanned geometry EDIT: Or possibly several images with directional lighting on North, South, East, West to get the shadows of the coin to generate depth then a top down image to overlay on top of the 3d model Edited by BlueSolo
03/29/2015 2:30 pm
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Bedrock of the Community
United States
62064 Posts |
It probably involved more images as suggested. Probably in the 20+ range to great one great image.
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Pillar of the Community
United States
740 Posts |
I really like the tiny die crack bridging the 9 and 5 in 1957 and how it is displayed in the 3d image
Edited by BlueSolo
03/29/2015 3:58 pm
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Pillar of the Community
United States
4038 Posts |
For the curious...the first (2D) image was composed of 16 source images taken at uniform focal plane spacing, then 2D rendered using focus-stacking software. The software decides which pixels are in best focus and only includes those pixels in the final 2D rendering. It keeps track of which focal plane the pixels came from, thereby creating a Depth Map that can be used to render a 3D image. The RGB values of each pixel are preserved in the final 3D rendering.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
United States
4932 Posts |
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Moderator
United States
23522 Posts |
BlueSolo, we're already accustomed to Z-stacking because we're working at the limits of diffraction to get sufficient depth of field to shoot a full-face image at 0.5x. At 1x or 2x optical one shot ain't happening. It was a relatively small step (for an engineer like Ray, anyway) to make the leap into 3D. Especially when you're a RPM/OMM geek like he is. These pics are so he can see his varieties better, and furthering the progress of coin photography is only a pleasant outgrowth.  It's not the "wave of the future," it's here. The software is available to the public, the physical technology is downright cheap by photographic standards (we teach that here), and there is no reason aside some college-level coursework why anyone can't do this themselves. It's a skill, not a talent. It can be taught. |
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Replies: 14 / Views: 1,379 |
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Posted 03/29/2015 11:30 am
