More live marine diatoms

Charles Krebs · Post by **Charles Krebs** » Mon Apr 24, 2006 11:41 am

Two more shots from the saltwater sample I took a few days ago. I liked the "setting" of the top image... diatoms attached to other diatoms.

The lower image is a close look at the connection between two Rhabdonema (thanks Wim for the ID!). It was taken with the 100X. The DIC prism I have for 100X is designated for a different objective than I have, so I can't be sure if it is optimal, but it does seem to give a decent DIC effect.

Wim van Egmond · Post by **Wim van Egmond** » Tue Apr 25, 2006 2:04 am

Nice, nice, nice! Great to see you are doing marine. Did you also try plankton?

I have not tried much with the 100X. I do know that you don't always need the matching prisms. I use teh 16X prism for the 40X and the 40X prism for the 25X:)

Wim

rene · Post by **rene** » Tue Apr 25, 2006 11:46 am

Beautiful as ever, Charlie.

When I had access to a Leitz interference contrast, the 10x didn't have a prism, but with the condenser prism (40x) only produced good nomarski-effect. Don't really know why and how...
Optics, huh... More of an art sometime.

Do you know the id of the filament at the right in the top pic?? The other one a Melosira?

Rene.