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Mineral PhotographyHigh definition photo
29th Jan 2012 12:13 UTCAccount Closed
image 01
image 02
and 2 small images of these links
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro395.jpg
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro396.jpg
29th Jan 2012 14:00 UTCHarjo Neutkens Manager
Very impressive! Mes felicitations.
30th Jan 2012 02:52 UTCEugene & Sharon Cisneros Expert
Excellent work! You have taken mineral photography one step further along its evolutionary path.
If I am not mistaken, you have accomplished a method that I have only thought about. I am assuming that this is a stitched together composite of numerous multi-focus stacks.
Gene
30th Jan 2012 03:23 UTCAccount Closed
That's right, it's this method.
No limitation in x,y and Z axis.
For the moment i try with my 4x objective but new test with others objectives in some days.
Fred
30th Jan 2012 06:54 UTCHarald Schillhammer Expert
Anyway, my question has been answered already (because Gene asked the same).
Very nice results.
However, I have an additional question: do you move the camera setup or the subject? The best method would be to move the camera but with the lens staying in position - then stitching is a piece of cake. The only problem is that you have to use a lens with a large enough image circle.
I have always wanted to try that but I would need another kind of bellows for that, one with a shift option.
I guess you use an xy-stage to move either the entire set-up or the subject, right?
Cheers
30th Jan 2012 15:30 UTCJeff Weissman Expert
30th Jan 2012 16:24 UTCAccount Closed
In my case it is the mineral that moves. For now they are testing because I have to also work depending on the capabilities of the software (Photomerge)
I use an XYZ stage with a stroke of 40 mm in all directions. The first objective is a Nikon CFI 4X achromatic. The base image has a field of view 3.5 mm. I'll try to see with others objectives. Image with this objective is 15 mm. My work is done with a bridge not a reflex.
This method is easily appliable for subjects up to 2 mm field to keep a sufficient resolution.
But this method is also applicable to larger issues and I will try quickly in this case.
Fred
30th Jan 2012 20:40 UTCAccount Closed
image with dcr 250
I think than now, all people can built great image with inexpensive material.
And the size for internet
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro397.jpg
30th Jan 2012 23:32 UTCAccount Closed
image 02 built with 6 stacked image
small example
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro398.jpg
30th Jan 2012 23:55 UTCEugene & Sharon Cisneros Expert
I believe that the defining difference between Matteo's images and Frederic's images is in the total pixel size of the final images. Of course there is no need to make 75MP images to show on a 2MP computer monitor, but those who wish to print large photos for display, or other purposes, are condemned to use huge files. Another case for super resolution images is that even on a computer monitor, you can display a non-micro image and then have the capability of zooming in to see micro details that would not be visible in the wider field of view.
For example, a 15000X5000 pixels (75MP) would make a high quality print of 50" x 17" (127cm x 42cm), A single 18MP image, from a APS-C sensor, would be approximately 5184 x 3456 pixels and would yield a high quality print of 17.2" x 11.5" (43.7cm X 29.3cm). If displayed on a monitor, there would be a difference in available zoom factor of ~3 between these file sizes. So, depending on the final result desired, bigger can be better.
The trend towards super resolution images is becoming popular in various scientific disciplines. One amateur astronomer has created an image of the sky that is 5000 MP in size and is a composite of over 37000 images! It allows one to see the whole sky and then zoom in to see very fine detail. http://skysurvey.org/
This is the way that science goes.... Stop long enough to see what you have done and be left in the dust. So, I admire those who push the limits. That said, I believe that both Frederic, Matteo and others are on the cutting edge. I can only aspire to refining my capabilities to these levels.
Gene
31st Jan 2012 02:30 UTCKeith A. Peregrine
Keith
31st Jan 2012 19:28 UTCAccount Closed
Here an other example (unperfect, for the moment i see the best method). 4 image for this construction... Just DCR 250 and xyz stage
image zoomable
And small image
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro399.jpg
31st Jan 2012 22:26 UTCAccount Closed
image zoomable - Rutile
and small image
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro400.jpg
1st Feb 2012 10:18 UTCChristian Auer 🌟 Expert
Great job and thanks for sharing!
1st Feb 2012 20:40 UTCAccount Closed
last image 40 Mpix ( and 6 photos stacked)
photo for zooming
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro401.jpg
1st Feb 2012 21:00 UTCHarjo Neutkens Manager
2nd Feb 2012 08:36 UTCChristian Auer 🌟 Expert
http://www.photomacrography.net/forum/
If you search for "stitching" you will find some great ideas like http://www.photomacrography.net/forum/viewtopic.php?t=15322&highlight=stitching
I wish you good luck with your phantastic work. Unfortunately my time is too limited to do the same.
2nd Feb 2012 23:54 UTCDebbie Woolf Manager
I have edited & deleted non-relevant comments to the topic Fred started.
I'm sorry if that happens to be a post you made but I needed to bring some order into this great topic.
Debbie
3rd Feb 2012 07:32 UTCAccount Closed
Stage xyz could be find in ebay also.
5th Feb 2012 20:27 UTCAccount Closed
Big here
Big image with zooming
small here
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro404.jpg
27th Mar 2012 19:52 UTCAccount Closed
27th Mar 2012 21:51 UTCAccount Closed
difference ?
azurite
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro457.jpg
30th Mar 2012 16:20 UTCEugene & Sharon Cisneros Expert
Your persistence has been richly rewarded and your last contribution is simply superb! Keep up the good work and please post your future results, as I'm sure they will be of interest to all who follow this topic.
Gene
30th Mar 2012 17:46 UTCHarald Schillhammer Expert
If I use a 5X objective with my tube lens (focal length 200mm) at an extension of 160mm I get a FOV of ca. 7 mm. Anything much shorter than that and the image suffers from vignetting and loss of resolution, especially in the corners. Ideally, for a 4X objective, I would expect a FOV of about 8mm for peak performance.
I know that the Nikon CFI Plans have quite a tolerance for extensions deviating from the design length and the problems that might occur are difficult to judge in your image because the in-focus parts are rather centered.
It would be interesting if you could make a photo with identical set-up but choosing a specimen with much finer detail that covers the entire frame. This would really reveal any short-comings.
Cheers
30th Mar 2012 19:52 UTCAccount Closed
I try with my 2x objective (new ! Find in china.... less expensive than mitutoyo but i can said result seems very good).
Result fastly.
Thanks for all Gene and everybody !
31st Mar 2012 08:05 UTCHarald Schillhammer Expert
31st Mar 2012 10:20 UTCUwe Ludwig
Uwe Ludwig
15th Apr 2012 00:31 UTCAccount Closed
Big here (42 Mpix)
Image zoomable
and small too
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro555.jpg
29th Apr 2012 17:54 UTCAccount Closed
An other example here :
small image and a link for the big
Big image here
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro645.jpg
30th Apr 2012 03:12 UTCRock Currier Expert
9th May 2012 13:23 UTCAccount Closed
most of them are on mindat.
This specimen have been built with panoramic technic, she is small here but quality is very high.... Click on and quality is better but far of the original.
http://www.mindat.org/xpic.php?fname=0804151001336565431.jpg
27th Jun 2012 06:30 UTCAccount Closed
I present 2 last HD photo (coposite photo with 4 ou 8 photo)
Image zoomable 4 photo
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro907.jpg
Image zoomable 8 photo
http://www.alpinismeetmineraux.fr/mineralogie/macro/supermacro/supermacro914.jpg
28th Jun 2012 17:27 UTCAccount Closed
A trip in a small world
29th Jun 2012 08:51 UTCRoger Curry
Regards,
Rog
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