Marine ciliate

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75RR
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Joined: Sun Oct 12, 2014 2:34 am
Location: Estepona, Spain

Marine ciliate

#1 Post by 75RR » Sat Jul 11, 2020 9:13 pm

Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

DonSchaeffer
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Location: Winnipeg, Manitoba, Canada

Re: Marine ciliate

#2 Post by DonSchaeffer » Sat Jul 11, 2020 10:06 pm

How big is this guy? He looks like a fish.

hans
Posts: 624
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Re: Marine ciliate

#3 Post by hans » Sat Jul 11, 2020 10:26 pm

These wave-like ripple patterns seem to appear and disappear and move in a way that is hard to discern what the 3D structure would be. Are they real or some sort of optical/camera artifact? The file names are the timestamps from where in the video I cropped them from.
06s.jpg
06s.jpg (6.17 KiB) Viewed 516 times
21s.jpg
21s.jpg (7.88 KiB) Viewed 516 times
47s.jpg
47s.jpg (8.1 KiB) Viewed 516 times
54s.jpg
54s.jpg (3.51 KiB) Viewed 516 times

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75RR
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Location: Estepona, Spain

Re: Marine ciliate

#4 Post by 75RR » Sun Jul 12, 2020 5:08 am

Thanks DonSchaeffer and hans

The ciliate is about 3/4 of a millimeter long

The lines you refer to are rows of cilia, as the ciliate changes position they move in and out of focus.


I was experimenting with the camera setup, as I do from time to time. Can't seem to leave things alone :)

In this case it was direct projection on to the camera sensor, using a raised 'normal' 12.5x kpl eyepiece and the 25x Neofluar objective.

Still needs a little fine tuning but I thought the ciliate interesting enough to show.
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

DonSchaeffer
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Location: Winnipeg, Manitoba, Canada

Re: Marine ciliate

#5 Post by DonSchaeffer » Sun Jul 12, 2020 1:36 pm

What do you mean direct projection to the camera lens?

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75RR
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Re: Marine ciliate

#6 Post by 75RR » Sun Jul 12, 2020 1:41 pm

DonSchaeffer wrote:
Sun Jul 12, 2020 1:36 pm
What do you mean direct projection to the camera lens?
Have a look through this pdf and the links within it: http://www.krebsmicro.com/pdf/trinoc_a3.pdf

This is the link to the main site: http://www.krebsmicro.com/
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

Zuul
Posts: 212
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Re: Marine ciliate

#7 Post by Zuul » Sun Jul 12, 2020 1:51 pm

DonSchaeffer wrote:
Sun Jul 12, 2020 1:36 pm
What do you mean direct projection to the camera lens?
Direct to the sensor. No lens.

DonSchaeffer
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Joined: Sun Mar 22, 2020 10:06 am
Location: Winnipeg, Manitoba, Canada

Re: Marine ciliate

#8 Post by DonSchaeffer » Sun Jul 12, 2020 3:07 pm

Gotcha.

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