green algae in phase contrast

Frank Fox · Post by **Frank Fox** » Wed Aug 17, 2011 6:45 am

Hello,

I'll show you today green algae in phase contrast.

Mitch640 · Post by **Mitch640** » Wed Aug 17, 2011 7:16 am

Very nice images, especially #2.

Jbailey · Post by **Jbailey** » Wed Aug 17, 2011 7:34 am

Welcome to the forum, Frank.

These are excellent photos!

I was in Trier a few years ago. I was touring on the way back from attending Photokina at Cologne.

Jim

Marek Mis · Post by **Marek Mis** » Wed Aug 17, 2011 11:42 pm

Frank,

Beautiful images !
I like the phase contrast. You can very seldom watch this technique at this forum. You did it very good. I sometimes take photographs using phase contrast, but my 40 x Ph objective is not enough good to take photographs such tiny microorganisms like Scenedesmus on your fourth image.
What kind of microscope and the optics do you use ?
Will you be so kind as to show me your equipment for photomicrography ?

Thanks for sharing,

Marek

Cactusdave · Post by **Cactusdave** » Thu Aug 18, 2011 9:46 am

Excellent! Unusual and highly effective use of high power phase contrast.

Charles Krebs · Post by **Charles Krebs** » Sat Aug 20, 2011 10:39 am

Frank,

These are all beautiful images. Superbly photographed.

Wim van Egmond · Post by **Wim van Egmond** » Sun Aug 21, 2011 12:44 am

Excellent images. Good to see more phase contrast in the forum. The trouble of phase is of course the halos. I assume you digitally cleaned the background. The result is great!

Wim

Frank Fox · Post by **Frank Fox** » Mon Aug 22, 2011 4:18 am

Thank you all.

Jbailey@ Yes, Trier is a very beautiful and very old town.

Marek Mis@ I use a Zeiss Jena Microscope "Jenamed" with infinity optics.
Here I've used the lens CZJ 250CF HI APO 100/1.40 PHv.