Algae videos

Images made through a microscope. All subject types.

Moderators: rjlittlefield, ChrisR, Chris S., Pau

curt0909
Posts: 609
Joined: Wed Oct 26, 2011 10:06 am
Location: Pittsburgh, PA

Algae videos

Post by curt0909 »

Surirella diatom.
http://www.youtube.com/watch?v=oWLTvq3L ... ature=plcp

Various algae. Possibly Oscillatoria and Staurodesmus-convergens :?:
http://www.youtube.com/watch?v=iXs4MYyt ... playnext=1

Cosmarium Desmid with 20x 40x 60x objectives
http://www.youtube.com/watch?v=fr6405ew ... ature=plcp

Pau
Site Admin
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Location: Valencia, Spain

Post by Pau »

The Cosmarium one is very nice, with all this changes in the illumination.
Pau

fpelectronica
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Joined: Fri Feb 19, 2010 3:56 pm
Location: España

Post by fpelectronica »

Very good definition of the videos
Francisco

curt0909
Posts: 609
Joined: Wed Oct 26, 2011 10:06 am
Location: Pittsburgh, PA

Post by curt0909 »

Thanks Pau and Francisco. Illumination changes were very simple. Either rotating lower prism offset or moving upper prism laterally.

uaalgae
Posts: 30
Joined: Sat Jan 07, 2012 8:51 pm
Location: Department of Biology, The University of Akron, Akron, OH.

Post by uaalgae »

The Cosmarium displays "Brownian Movement" of its crystals very nicely.
uaalgae

RogelioMoreno
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Location: Panama

Post by RogelioMoreno »

Nice videos.

Rogelio

curt0909
Posts: 609
Joined: Wed Oct 26, 2011 10:06 am
Location: Pittsburgh, PA

Post by curt0909 »

Thank you Rogelio and Uaalgae. The crystals are a bit of an obstacle to photograph with DIC due to their birefringence. My standard setting causes them to appear very bright opposed to the rest of the image. Even when they are not in the plane of focus they cause a bright haze that obscures the details of the focal plane, similar to a fluorescence photograph.

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