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DPChallenge Forums >> Photography Discussion >> Sand grains magnified 250 times
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07/20/2011 09:28:13 AM · #1
Viewed at a magnification of over 250 times real life, tiny grains of sand are shown to be delicate, colourful structures as unique as snowflakes

Read more: //www.dailymail.co.uk/sciencetech/article-2011471/Pictures-sand-Close-photographs-reveal-incredible-beauty.html#ixzz1SeUE37Th

07/20/2011 09:32:03 AM · #2
Thanks for posting this. Fascinating & enchanting. Thank goodness for cameras, to show us these wondeers.
07/20/2011 09:35:59 AM · #3
Very interesting. It seems he invented his own version of focus stacking.
07/20/2011 09:36:26 AM · #4
Wonderful!
07/20/2011 09:41:35 AM · #5
very cool. What focus stackers are you all using?
Anyone know of a decent freeware focus stacker?
07/20/2011 09:51:46 AM · #6
Originally posted by amsterdamman:

Anyone know of a decent freeware focus stacker?


CombineZ is free, and works well. I use it at work. It's not the most polished software, but in default mode it does a pretty darn good job.
Ps CS5 also will do focus stacking, so if you have it you may want to try it. I can't vouch for it,never tried it.

Message edited by author 2011-07-20 09:51:55.
07/20/2011 09:53:06 AM · #7
Man, this guy's got time on his hands!

"Like grains of sand through the hourglass, these are the days of our lives...."
07/20/2011 10:11:30 AM · #8
I thought they all were the same. How beautiful!
07/20/2011 10:27:03 AM · #9
This is pretty much what I expected from the last macro challenge.
07/20/2011 10:38:07 AM · #10
I've tried CS5's focus stacking routine on a flower macro with various focus points, and it worked like magic. Was quite surprised at how well it works.
07/20/2011 10:52:52 AM · #11
Originally posted by davesharman:

I've tried CS5's focus stacking routine on a flower macro with various focus points, and it worked like magic. Was quite surprised at how well it works.


that's good to know. I probably won't upgrade from CS4 until CS6 comes out, but I will file for future reference.
07/20/2011 01:36:38 PM · #12
well worth the look. thanks.
07/20/2011 01:42:55 PM · #13
When I was a geology student many years ago - during the micro-palaeontology module, we'd have to sift through ancient sands and, using a microscope and a very fine wet paintbrush, we'd pick up the organic elements and put them on a gridded slide. The ratio of various micro-fossils would tell you what the palaeo-environment was like.

I don't remember them being colourful like this though..... Lovely stuff.
07/20/2011 02:13:14 PM · #14
Originally posted by paulbtlw:


I don't remember them being colourful like this though..... Lovely stuff.


As I was looking at them, I said to myself, "what the heck did he coat these with??"
they look "wet" but it's probably not water. Possibly a thin vapor-deposited solid (e.g. paraxylylene) or a dried coating applied as a liquid.
07/20/2011 02:23:51 PM · #15
Pretty cool.
07/20/2011 02:25:19 PM · #16
Originally posted by paulbtlw:

When I was a geology student many years ago - during the micro-palaeontology module, we'd have to sift through ancient sands and, using a microscope and a very fine wet paintbrush, we'd pick up the organic elements and put them on a gridded slide. The ratio of various micro-fossils would tell you what the palaeo-environment was like.

I don't remember them being colourful like this though..... Lovely stuff.


Right, so this is what's IN sand, right? There's plenty of boring particles all around them, I assume? Or do I have to go to the Jersey Shore and see for myself?
07/20/2011 02:41:52 PM · #17
i dunno, you might have to go to the other Jersey... that was British sand in those photos.
07/20/2011 03:00:43 PM · #18
Originally posted by posthumous:


Right, so this is what's IN sand, right? There's plenty of boring particles all around them, I assume? Or do I have to go to the Jersey Shore and see for myself?


Particles like this are there, but from the article, he has spent *years* scouring through who knows how much sand to find the selection he has photographed.
07/20/2011 03:07:19 PM · #19
thank you!!! amazing
07/20/2011 04:29:00 PM · #20
Originally posted by skewsme:

i dunno, you might have to go to the other Jersey... that was British sand in those photos.


The guy used sand from all over the world.

He's an American, living in Hawaii.

07/20/2011 08:56:00 PM · #21
Originally posted by kirbic:

Originally posted by amsterdamman:

Anyone know of a decent freeware focus stacker?


CombineZ is free, and works well. I use it at work. It's not the most polished software, but in default mode it does a pretty darn good job.
Ps CS5 also will do focus stacking, so if you have it you may want to try it. I can't vouch for it,never tried it.


CS4 does it too, and I've used it. It works.... alright. I saw a definite effect, but then when looking through the various masks, was sorta left scratching my head at what was selected as "sharp" or not.
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