Pensacola Florida Diatoms

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rnabholz
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Pensacola Florida Diatoms

#1 Post by rnabholz » Fri Oct 14, 2016 1:00 am

Over on the "Doing Diatoms" thread we have been discussing the cleaning of a Pensacola Florida beach sand sample sent to me by zzffnn.

Here are a few images from the sample.

AO 20, 100x Plan Achro Phase Oil Objective, Phase Condenser, Canon 70D, Single Frames

No ID's yet for most yet.

First a monster of a centric at 100 microns. Didn't fit the field, but too pretty to back out.
Pensacola 2003.JPG
100µm
Pensacola 2003.JPG (262.53 KiB) Viewed 3828 times
A colonial
Pensacola 2005.JPG
65µm
Pensacola 2005.JPG (147.56 KiB) Viewed 3828 times
Another beauty
Pensaocola 2002.JPG
83µm
Pensaocola 2002.JPG (115.02 KiB) Viewed 3828 times
A great group
Pensacola 2006.JPG
44µm
Pensacola 2006.JPG (134.82 KiB) Viewed 3828 times
And now one that caught the eye of this canoeist....
Pensacola 2004.JPG
58µm
Pensacola 2004.JPG (77.85 KiB) Viewed 3828 times

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zzffnn
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Re: Pensacola Florida Diatoms

#2 Post by zzffnn » Fri Oct 14, 2016 2:31 am

Wow, what a great series! Rod the magician has turned sand into beautiful pearls :mrgreen:

I did not see #2 or #5 in my rough screen.

I need to look into Galveston beach surf sand when it warms up next year.

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Re: Pensacola Florida Diatoms

#3 Post by rnabholz » Fri Oct 14, 2016 11:32 am

zzffnn wrote:Wow, what a great series! Rod the magician has turned sand into beautiful pearls :mrgreen:

I did not see #2 or #5 in my rough screen.

I need to look into Galveston beach surf sand when it warms up next year.
Thanks zz.

No magic involved. The challenge was the limited material that the sample produced. I just needed to adjust things a bit to maximize conservation of the sample. The rest was pretty straightforward.

I am working to dilute the suspension to produce slides that are a bit more sparse, and more appropriate for darkfield for you. That will take a bit of trial and error, but is doable.

Some interesting stuff in there.

Rod

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Re: Pensacola Florida Diatoms

#4 Post by KurtM » Fri Oct 14, 2016 1:06 pm

Fantastic stuff there, Rod! Your contributions to this hobby are significant as far as I'm concerned. The forms you're bringing to light, and the images you're making of them, are just wonderful and impressive!
Cheers,
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Re: Pensacola Florida Diatoms

#5 Post by 75RR » Fri Oct 14, 2016 1:51 pm

Phase working very well in these images.
Would like to see how COL works for you, if you can find the time of course.
Perhaps you could run a comparison test on a single diatom to give it a fair shake and see if you think it has potential.
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Re: Pensacola Florida Diatoms

#6 Post by billbillt » Fri Oct 14, 2016 3:01 pm

WOW!!.. These are superior photos!..

BillT

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Re: Pensacola Florida Diatoms

#7 Post by rnabholz » Fri Oct 14, 2016 3:04 pm

KurtM wrote:Fantastic stuff there, Rod! Your contributions to this hobby are significant as far as I'm concerned. The forms you're bringing to light, and the images you're making of them, are just wonderful and impressive!
Thanks Kurt, you are very generous. I don't think I am breaking any new ground in any way. I do hope it might encourage others to give it a try.

It really is addicting to scan a strew slide at high power and marvel at the sights. I think that is really enhanced by the satisfaction of creating the slide with your own efforts, or in this case in a cooperative effort of like-minded folks.

Thanks again.

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Re: Pensacola Florida Diatoms

#8 Post by rnabholz » Fri Oct 14, 2016 3:06 pm

75RR wrote:Phase working very well in these images.
Would like to see how COL works for you, if you can find the time of course.
Perhaps you could run a comparison test on a single diatom to give it a fair shake and see if you think it has potential.
Thanks 75.

I can do that. I see it all the time as I am switching between objectives and annuli, and I admit it has caught my attention at times. Stand by.....

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Re: Pensacola Florida Diatoms

#9 Post by rnabholz » Fri Oct 14, 2016 3:07 pm

billbillt wrote:WOW!!.. These are superior photos!..

BillT
Thank you Bill

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Re: Pensacola Florida Diatoms

#10 Post by hkv » Fri Oct 14, 2016 3:51 pm

These are reeeeaaaly great shots! The diatom in the first image, I have never seen before. Thanks for sharing
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Re: Pensacola Florida Diatoms

#11 Post by rnabholz » Fri Oct 14, 2016 6:19 pm

hkv wrote:These are reeeeaaaly great shots! The diatom in the first image, I have never seen before. Thanks for sharing
Thanks much hkv, glad you like them.

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Re: Pensacola Florida Diatoms

#12 Post by billben74 » Fri Oct 14, 2016 9:31 pm

Sorry I'm late to the party.
But I have to chip in, late or not.
Absolutely stunning.

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Re: Pensacola Florida Diatoms

#13 Post by rnabholz » Fri Oct 14, 2016 11:12 pm

billben74 wrote:Sorry I'm late to the party.
But I have to chip in, late or not.
Absolutely stunning.
You're not late, and your comments are always appreciated. Thank you.

Rod

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Re: Pensacola Florida Diatoms

#14 Post by vasselle » Sun Oct 16, 2016 10:19 am

Bonjour.
Très jolie série images.
Cordialement seb
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