Virginia Beach Diatoms

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rnabholz
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Virginia Beach Diatoms

#1 Post by rnabholz » Sun Jan 01, 2017 8:54 pm

Charles was kind enough to send me some samples from his neck of the woods. According to his notes these are from Virginia Beach. They were taken from a wet sand sample. The rinsed sand produced a thin broth that I was able to concentrate and clean and produce some nice slides from.

These are all Zerene stacks of between 7 to 15 images. I cleaned up the backgrounds.

American Optical Series 4, 90x Apo Oil, Oiled Condenser, afocal through 10x Compens eyepiece to Nexus 6 Phone.

Id's are the best I could come up with, discussion or corrections are always welcome.

Thanks for the sample Charles!
Aspeitia 109µm
Aspeitia 109µm
VA Beach 5182 ZS PMax Final.jpg (234.78 KiB) Viewed 3709 times
Rhopalodia 39µm
Rhopalodia 39µm
VA Beach 5235 ZS PMax Final.jpg (50.91 KiB) Viewed 3709 times
Actinoptychus 45µm
Actinoptychus 45µm
VA Beach 5011 ZS PMax Final.jpg (95.42 KiB) Viewed 3709 times
Diploneis 43µm
Diploneis 43µm
VA Beach 5266 ZS PMax Final.jpg (46.19 KiB) Viewed 3709 times
Coscinodiscus 43µm
Coscinodiscus 43µm
VA Beach 5257 ZS PMax Final.jpg (75.71 KiB) Viewed 3709 times
Last edited by rnabholz on Sun Jan 01, 2017 8:57 pm, edited 1 time in total.
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Re: Virginia Beach Diatoms

#2 Post by rnabholz » Sun Jan 01, 2017 8:55 pm

One more
Unidentified 38µm
Unidentified 38µm
VA Beach 5135 ZS PMax Final.jpg (79.41 KiB) Viewed 3708 times
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hkv
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Re: Virginia Beach Diatoms

#3 Post by hkv » Sun Jan 01, 2017 8:58 pm

Very nice! Once again, looks like pencil drawings!
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Re: Virginia Beach Diatoms

#4 Post by rnabholz » Mon Jan 02, 2017 1:19 am

Thanks hkv.

A good sharp pencil I hope? :lol:
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PeteM
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Re: Virginia Beach Diatoms

#5 Post by PeteM » Mon Jan 02, 2017 1:35 am

Great looking photos. Hope you have a terrific 2017.
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Re: Virginia Beach Diatoms

#6 Post by kit1980 » Mon Jan 02, 2017 1:53 am

Very nice!
Did you notice resolution difference vs non-oiled condenser?
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Re: Virginia Beach Diatoms

#7 Post by rnabholz » Mon Jan 02, 2017 2:43 am

PeteM wrote:Great looking photos. Hope you have a terrific 2017.
Thanks Pete. Best to you in 2017.
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Re: Virginia Beach Diatoms

#8 Post by rnabholz » Mon Jan 02, 2017 2:46 am

kit1980 wrote:Very nice!
Did you notice resolution difference vs non-oiled condenser?
Thanks Kit.

Yes, there is a difference in the very fine detail. Definitely worth the effort to do.

Rod
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Re: Virginia Beach Diatoms

#9 Post by zzffnn » Mon Jan 02, 2017 4:10 am

Very nice, Rod! Thank you for sharing.
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Re: Virginia Beach Diatoms

#10 Post by rnabholz » Mon Jan 02, 2017 5:42 am

zzffnn wrote:Very nice, Rod! Thank you for sharing.
Thanks zz.
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Crater Eddie
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Re: Virginia Beach Diatoms

#11 Post by Crater Eddie » Thu Jan 12, 2017 4:51 pm

Holy cow these are so sharp and crisp! You seem to have this nailed.
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Re: Virginia Beach Diatoms

#12 Post by 75RR » Thu Jan 12, 2017 5:12 pm

Great images
Detail on the first image at 109µm is pretty amazing, but I am thinking that getting the amount of detail that you did on the last one at 38µm is perhaps even more impressive. :)
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Re: Virginia Beach Diatoms

#13 Post by rnabholz » Thu Jan 12, 2017 9:43 pm

Thanks CE and 75.

The phone, stacking and some post processing. Beats the heck out of film.

Thanks again

Rod
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