Take a look at some of these:
www.science-info.org/pages/edfwill/
The galleries have a selection of images taken of moving protists and small animals. The videos (if you're interested) need the DivX codec to run, but I have uploaded the ordinary free version as well as the Pro DivX. Down at the end of the directory.
You can take fair to decent pictures if you use a fast enough shutter speed. But in a compound microscope depth of field is almost non-existent.
To slow down protists and small animals use wall-paper paste (methyl cellulose) it's sticky stuff but does the job quite well.
Don W
mike wilson wrote:
From: Don Williams <[EMAIL PROTECTED]> Date: 2005/04/28 Thu PM 02:19:51 GMT To: [email protected] Subject: Re: Photo micrography
Slowing is no good, they have to be absolutely still -- killed and fixed. It's impossible to take a stack of pictures of live animals small or large. Even taking a dozen pictures of a plant is impossible unless it's rigid or rather substantial -- like a cactus or a fungal fruiting body (mushroom). A dead insect works as long as you're quick about it. On the other hand you can do stereo pictures of living things (flash helps). But viewing them is something that some people simply cannot do -- without optical help such as a viewer or glasses (red/green, Polaroid or prism).
Agreed but I think Leon is looking for help to get whole body images at lower magnification. There may be some useful information here: http://www.microscopy-uk.org.uk/mag/artmay01/rhparam1.html About 3/4 of the way down, the paragraph that begins: "But let’s go back to the issue of other methods of slowing down active protozoa."
mike
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