Micscape Image Gallery -
'tough test' diatoms under the optical microscope

by Will Varnell, US


Editor's note: the two recent articles on using diatoms as test objects for the microscope have encouraged other readers to have a go. These splendid images of two of the toughest diatom species to resolve were sent in by Will Varnell. Will writes:

 

'Please find enclosed two jpeg's of Amphipleura pellucida and Frustulia rhomboides taken with my Reichert Polyvar plan-apo 100x oil objective of N.A. 1.32 with iris. The images were taken with blue filter, oiled 1.30 condenser, and DIC.

I was unable to resolve the lines into dots in Amphipleura pellucida even with much effort and it is probably out of range of this scope without a rectified condenser and a light scrambler.

Regards,

Will Varnell'

Click on the images to see larger <200kB images.


Amphipleura pellucida


Frustulia rhomboides

 

Comments to the author Comments to the author sent via our contacts page quoting page url plus : ('wvarnell','')">William Varnell welcomed.

 

The two recent Micscape articles on using diatoms as test objects are here (by Dave Walker) and here by Martin Mach.

 

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Published in the December 1999 edition of Micscape Magazine.

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