Oamaru IV

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rnabholz
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Oamaru IV

#1 Post by rnabholz » Fri Nov 30, 2018 1:53 am

More from the Oamaru New Zealand fossil sample

AO Apostar 4, 90x Apo, Oblique Mask, Canon 70D, Stacked using Zerene Stacker PMax routine
89µm
89µm
Oamaru 0395 ZS PMax Final.jpg (58.39 KiB) Viewed 5099 times
79µm
79µm
Oamaru 0364 ZS PMax Final.jpg (61.38 KiB) Viewed 5099 times
81µm
81µm
Oamaru 0376 ZS PMax Final.jpg (73.41 KiB) Viewed 5099 times

desertrat
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Re: Oamaru IV

#2 Post by desertrat » Fri Nov 30, 2018 2:00 am

All great images! I think I like the first one the best.

I take it you did a lot of image editing to eliminate background clutter? I think it does help the viewer to concentrate on the image.

Great to see another 4 series user, too.
Rick

A/O 10 Series Microstar
A/O 4 Series Microstar
A/O 4 Series Phasestar
A/O 4 Series Apostar
A/O Cycloptic Stereo
Several old monocular scopes in more or less decrepit but usable condition

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rnabholz
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Re: Oamaru IV

#3 Post by rnabholz » Fri Nov 30, 2018 2:43 am

desertrat wrote:All great images! I think I like the first one the best.

I take it you did a lot of image editing to eliminate background clutter? I think it does help the viewer to concentrate on the image.

Great to see another 4 series user, too.
Thanks Rick.

Yes, I should have mentioned that I cleaned things up. I am shooting these on strew slides, so it seems there is always a bit clutter that I can do without, so I take care of it.

My 4 stand is the only one I have with Apo optics, so I tend to choose it for brightfield and oblique images. I really enjoy using it, and the results it produces. I have noticed the list in your signature, great looking line up!

Thanks for your interest.

Rod

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75RR
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Re: Oamaru IV

#4 Post by 75RR » Fri Nov 30, 2018 6:56 am

more really lovely images!

I see that they are numbered, is this part of a future ID project? Web page ... book?
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

Hobbyst46
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Re: Oamaru IV

#5 Post by Hobbyst46 » Fri Nov 30, 2018 10:12 am

desertrat wrote:All great images! I think I like the first one the best.
Same with me.
The non-uniform ornamentation pattern of the diatoms in the 2nd and 3rd images is intriguing: are the tiny holes blocked? by a calcareous precipitate?

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rnabholz
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Re: Oamaru IV

#6 Post by rnabholz » Fri Nov 30, 2018 2:10 pm

75RR wrote:more really lovely images!

I see that they are numbered, is this part of a future ID project? Web page ... book?
Thank you 75.

The numbering is another go at organizing the images on my hard drive, no larger plan to clutter the world with my attempts at imaging.

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rnabholz
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Re: Oamaru IV

#7 Post by rnabholz » Fri Nov 30, 2018 2:18 pm

Hobbyst46 wrote:
desertrat wrote:All great images! I think I like the first one the best.
Same with me.
The non-uniform ornamentation pattern of the diatoms in the 2nd and 3rd images is intriguing: are the tiny holes blocked? by a calcareous precipitate?
Thanks Hobby.

Regarding the tri-lobed diatom, which I believe to be Triceratium, I have found references that show that non uniform pattern, so I believe that is just the way it formed. I does seem a bit unusual compared to the highly organized, symetric patterns we see in a lot of diatoms.

Thanks for the interest and comment.

Rod

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zzffnn
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Re: Oamaru IV

#8 Post by zzffnn » Fri Nov 30, 2018 8:17 pm

Beautiful forms, thank you for sharing, Rob!

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rnabholz
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Re: Oamaru IV

#9 Post by rnabholz » Sat Dec 01, 2018 12:29 am

zzffnn wrote:Beautiful forms, thank you for sharing, Rob!
Thanks zz

DonSchaeffer
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Re: Oamaru IV

#10 Post by DonSchaeffer » Wed May 20, 2020 4:52 pm

You sure these weren't made by ancient Egyptians or Chinese?

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