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 Replies: 24 / Views: 4,768 |
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Pillar of the Community
  United States
4038 Posts |
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Moderator
United States
15483 Posts |
Very impressive indeed - you Ray are absolutely a treasured CCF expert resource for all matters photo related.  Take a look at my other hobby ... http://www.jk-dk.art |
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Pillar of the Community
United States
1901 Posts |
Is there a tutorial on how you are doing these images and what you use? I'm curious
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Pillar of the Community
United States
4038 Posts |
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
United States
1901 Posts |
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Pillar of the Community
United States
4038 Posts |
I have upgraded my Stack and Stitch system. In previous photos the X-Y movement was manual, using a small XY micrometer stage. This limited my movement to +/-8mm. I have a +/-12.5mm stage coming in the mail, but it will take a while to arrive. Someone asked me to do a larger coin, and I decided to upgrade to an automated stage that can go +/-25mm, enough to do bigger than Dollars. I am also now a paid subscriber on EasyZoom hosting site, and finally have made an improvement to my lighting by raising the light angles. To celebrate, I re-did the 55-S VEDS...see it here, and let me know what you think of the new lighting: https://easyzoom.com/image/124996Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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New Member
Greece
45 Posts |
What did you use to get a 9600X9600 resolution?
Tx
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Pillar of the Community
United States
4038 Posts |
This was done with Stack and Stitch technique:
Canon T2i
Nikon 2x lens
Panorama of 6 images, 2 wide x 3 tall
Each of 6 images requires 10 stacked images for depth of field (Total 60 images)
The 2 x 3 panorama is logical because it comes out square (for sensors that are 3:2 aspect ratio), so fits the coin nicely.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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New Member
United States
11 Posts |
Amazing photos! I am trying to learn coin photography and you have really set the bar for this newbie!
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Pillar of the Community
United States
4038 Posts |
Thanks Teresa61! This technique is not for the faint hearted. But there are other much simpler ways to shoot coins that result in very nice image quality. BTW, my first Stack and Stitch image was a 3x4 panorama, 12500 x 12500 (156MP). See it here: https://easyzoom.com/image/123994I found that the extra resolution was a lot more work for just a bit more benefit, so for all the rest of my panoramas I've stuck with 2x3. Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
United States
1476 Posts |
Amazing looking pics.
How long did it take to stich and stack the images?
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Pillar of the Community
United States
4038 Posts |
Thanks Dar.
Each of these takes about 20-30 min of work to shoot, stack, stitch, and upload.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
 United States
900 Posts |
Those pictures are crazy good and the technology is mind-boggling. I was reading the link you sent about Stack and Stitching. As a software developer, I am truly impressed at the concept of taking multiple images with different depth of focus and afterwards stitching together the in-focus portions of each shot to get a composite photo showing the best detail.
Who thinks of this stuff? Just spectacular!
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Pillar of the Community
Australia
852 Posts |
Amazing detail, would the 20-30 minutes be slashed if there was some way to automate the process? Would extra dollars for the setup solve the time problem or not?
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Pillar of the Community
United States
4038 Posts |
Problem is the work is done in several different programs:
Shots are taken with an automated XYZ system
Shots are converted from RAW to TIFF in editing program
Shots are then stacked with a stacking program
The output images from the stacking program are stitched together with a stitching program
So while each step is automated, there is no single program that controls the whole process. Also, there are some creative decisions needing to be made during the RAW to TIFF conversion, and during the stitching process, and these cannot be easily automated. I suppose the whole thing could be automated, with some sort of shell program that would call each of the sub-programs, plus some AI that could shoot for various creative targets in the output (if they can be objectively determined), but I would expect that software to be very expensive to develop.
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Posted 08/30/2018 7:25 pm
