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Chara

 
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Rollin



Joined: 11 Jan 2011
Posts: 33
Location: Belgium

PostPosted: Sun May 13, 2012 4:56 am    Post subject: Chara Reply with quote

Hello,

While fishing in my garden pond for Daphnia I noticed some Chara weed sporulating. I tried to make a picture of the oogonium and antheridium. I hope you like it.

BDplan 20x, stacked in Zerene, 150 images. One SB900 in front, two SB700 from behind, D3, PB4 bellows.

Kind regards,

Rollin

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qanunji



Joined: 29 May 2011
Posts: 36
Location: Haifa, Israel

PostPosted: Mon May 14, 2012 3:29 pm    Post subject: Reply with quote

Beautiful!
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rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 18238
Location: Richland, Washington State, USA

PostPosted: Mon May 14, 2012 7:29 pm    Post subject: Reply with quote

This is spectacular!

Can you tell us more about your setup? I'm especially interested in how you held or confined the subjects so they could be illuminated front & rear by the flashes and captured in only 150 images at 20X. Thanks!

--Rik
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Rollin



Joined: 11 Jan 2011
Posts: 33
Location: Belgium

PostPosted: Tue May 15, 2012 11:17 am    Post subject: Reply with quote

No problem, this is the setup. A carboard box, lined with black paper, holes at the side for the flashes and one hole on top for the slide with a well. I used a step size of 5┬Ám. These structures are very tiny!



If you have more questions, please ask.
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Planapo



Joined: 07 Nov 2006
Posts: 1533
Location: Germany, in the United States of Europe

PostPosted: Wed May 16, 2012 1:01 am    Post subject: Reply with quote

Lovely!
Much better than the photo of the same subject in one of my best-loved botany textbooks!

--Betty
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Atticus Finch: "You never really understand a person until you consider things from his point of view
- until you climb into his skin and walk around in it."
Lee, N. H. 1960. To Kill a Mockingbird. J. B. Lippincott, New York.
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rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 18238
Location: Richland, Washington State, USA

PostPosted: Sat May 26, 2012 11:08 am    Post subject: Reply with quote

Thanks for the description of your setup. Very helpful!

I have one more question: did you shoot through a cover glass, or just through the surface of the water?

--Rik
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Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4000
Location: Valencia, Spain

PostPosted: Sat May 26, 2012 11:27 am    Post subject: Reply with quote

Excellent image and a very original darkfield illumination setup without microscope darkfield condenser.
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Pau
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Rollin



Joined: 11 Jan 2011
Posts: 33
Location: Belgium

PostPosted: Sat May 26, 2012 11:46 am    Post subject: Reply with quote

Rik,

Although I certainly use coverslips for water mites and daphnia, in this case I did not. The plant itself was too wide. The structures themselves were tiny, so the welled slide was deep enough to put them under water completely.

Maybe some explanation about the setup is requiered. I'm a general wildlife photographer with an interest in left-over subjects. Things my collegues don't like to picture. I do picture birds and landscapes, but I'm quiet known for my bats in flight, fish, troglobites etc.. Each year I tackle an other subject. At this moment, it is macro beyond 1:1. I try to picture my subjects with the equipment I have. I had to buy the optics of course (made a nice deal with Javier seta666), but someting as cool as the Bratcam is overkill for me as this is just temporary. Next year, I 'll probably try to picture flying bumblebees or canopy beetles or something.

So, I made some kind of darkfield system of a box and used one of my tripods to support the camera with the stackshot. If someone has a real darkfield-thing on surplus, I'm willing to exchange it for my box Wink

Some other species I made with this system are added below.

Rollin

Water mite



Chydorus water flea balancing an algae on her head

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Chris S.
Site Admin


Joined: 05 Apr 2009
Posts: 2847
Location: Ohio, USA

PostPosted: Sun May 27, 2012 12:39 am    Post subject: Reply with quote

Rollin, lovely images! I came back to your chara shot several times today to study it, and then you added your water mite and daphnia. Of particular note, in my opinion, is the very skillful use of light in all these.

Your remark about the Bratcam made my day. Smile

Cheers,

--Chris
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seta666



Joined: 19 Mar 2010
Posts: 860
Location: Castellon, Spain

PostPosted: Sun May 27, 2012 12:45 am    Post subject: Reply with quote

Very nice set; I like the lighting. The "box" is a clever aproach; I am glad you are giving good use to those lenses
Regards
Javier
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Craig Gerard



Joined: 01 May 2010
Posts: 2877
Location: Australia

PostPosted: Mon May 28, 2012 2:41 am    Post subject: Reply with quote

Rollin,

More excellent images. Thanks for uploading. Did you use the 'well' slide for the latest images also? I noticed some additional images on your website Cool


Craig
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Rollin



Joined: 11 Jan 2011
Posts: 33
Location: Belgium

PostPosted: Mon May 28, 2012 4:04 am    Post subject: Reply with quote

Craig,

Thank you for your kind words. For most of the images I used my welled slide. For the newt egg I had to make more space by adding pieces of a broken slide at both sides of the well and a normal slide on top. Without this cover, the image was not so nice. By pressing the egg a little bit, I liked the result more.

Regards,

Rollin
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Craig Gerard



Joined: 01 May 2010
Posts: 2877
Location: Australia

PostPosted: Mon May 28, 2012 5:19 am    Post subject: Reply with quote

Rollin,

There is a darkfield ringlight intended for use with stereo microscopes that might be useful should you come across one. I was fortunate enough to pick up a Schott/Fostec product for USD $20.00 some time ago, but can't see any listed at present. A flash could be fired up the light pipe.

Your images and the use of concavity 'well' slides for darkfield has prompted my attention.

Gene mentioned a similar device and linked to some sample images. These should provide some idea what the gizmo looks like.

http://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=57&t=13714 (images 1 and 2, just the light guide and the attached ringlight sitting under the scope lens).

http://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=21&t=13698

*Note: I'd wait for confirmation from the microscopists if this approach would work before parting with any cash or entertaining the idea. It was just a passing thought when I considered your images and setup.



Craig
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naturephoto1



Joined: 13 Nov 2011
Posts: 509
Location: Breinigsville, PA

PostPosted: Tue May 29, 2012 4:36 pm    Post subject: Reply with quote

Nice images, I particularly like the water mite.

Rich
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SteveGreen1953



Joined: 22 Mar 2012
Posts: 44
Location: Sycamore, IL USA

PostPosted: Fri Jun 01, 2012 1:52 pm    Post subject: Reply with quote

Lovely images all and thanks for sharing your setup. Well done! Very Happy
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