Hi,
This coin has been in the basket where we keep our house keys for years, recently it occurred to me to take a closer look. The photo was then taken using focus stacking with a 5X microscope lens, on the FF sensor, cropping the edges to remove the portions with less detail, then assembled as you would with a panoramic shot, the result is an image with a resolution of 23654 × 23654, which guarantees me and anyone who wants to take a look to be able to observe the small details that have formed on this coin.
via the below link you can view the image in full resolution
https://www.gigapan.com/gigapans/236570
Best regards,
Dario
Oxidized 1 euro cent
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Re: Oxidized 1 euro cent
Very nice! How many tiles and how many total exposures is this?
BTW, I have admin-edited the URL to use gigapan.com instead of gigapan.org, to avoid browser complaints about gigapan's certificate for HTTPS.
--Rik
BTW, I have admin-edited the URL to use gigapan.com instead of gigapan.org, to avoid browser complaints about gigapan's certificate for HTTPS.
--Rik
Re: Oxidized 1 euro cent
Thank you rjlittlefield,rjlittlefield wrote: ↑Sun Jan 12, 2025 10:22 amVery nice! How many tiles and how many total exposures is this?
BTW, I have admin-edited the URL to use gigapan.com instead of gigapan.org, to avoid browser complaints about gigapan's certificate for HTTPS.
--Rik
This is the result of joining 71 tiles, 10.082 exposures, each tile has a resolution of 4050x4050px
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Re: Oxidized 1 euro cent
Very nice image. Lots of work to get this result, but worth the effort.
Re: Oxidized 1 euro cent
thanks, it was actually a very long job, and since it was the first time I did it, I lost a lot of time in understanding and trying to assemble an image at such a resolution, now the most tedious part is waiting for it to finish creating the sequence of tiles, I don't remember exactly how long it took, from 6 to 9 hours.ray_parkhurst wrote: ↑Sun Jan 12, 2025 6:14 pmVery nice image. Lots of work to get this result, but worth the effort.
Although, it makes me smile to think that in reality it was the coin that waited the longest, so that it could oxidize like this

I would never have allowed myself to start a project like that, if it weren't for the fact that I changed my camera, opting for one without a mechanical shutter.
Re: Oxidized 1 euro cent
Darionett - you may want to find the following - disclosure - I have not, however, Pavel Kartashov is well known in both the mineral and corroded coin communities.
MINERALIZATION CRUSTS AND OTHER NEOGENIC FORMATIONS AT CAST COINS OF CHINESE TYPE, Part1
P.M.Kartashov, Belov'sLaboratory of Minerals Crystallochemistry, Institute Geology OreDeposits (IGEM RAS) Moscow
MINERALIZATION CRUSTS AND OTHER NEOGENIC FORMATIONS AT CAST COINS OF CHINESE TYPE, Part1
P.M.Kartashov, Belov'sLaboratory of Minerals Crystallochemistry, Institute Geology OreDeposits (IGEM RAS) Moscow
It's not what you look at that matters, it's what you see - Henry David Thoreau