On Feb 16, 2006, at 8:12 PM, Don Williams wrote:

But should I start injecting microscopy into this group?

Yes you should :) I enjoy seeing the world at that scale. My local camera shop's secondhand page says they have a Pentax microscope adaptor in stock... if I had a microscope I'd buy it!

Anyway here goes:

http://www.kolumbus.fi/mimosa/HOLD/401-452.jpg

this is a stack of 52 images in 2 um steps taken at about 450X under phase contrast. The object is the Lorica (siliceous skeleton) of a small aquatic protist -- the name of which escapes me for the moment but is irrelevant anyway. This is a good example of how well CombZ does it's job. The depth of focus obtained is about 100 micrometres.

Nice pic... it looks like a brooch. And I thought handheld macro at f/2.8-f/4 was difficult due to limited DOF.

- Dave

http://www.bluemoon.net.nz/
http://www.digistar.com/~dmann/



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