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1

The imnstrument is shown here upside down. If it is turned around, it looks like this: The glass disc are placed around the middle tube. The operation principle can be seen in this image: The specimen is placed in the tube in the middle and pushed out by turning the knob at the bottom. The minimal increment for this kind of microtome is 10 micrometers. ...


1

Very popular microscopes for bio work these days are the inverted style, These allow you to view samples without preparing slides. http://en.wikipedia.org/wiki/Inverted_microscope http://www.biotechequipmentsales.com/equipment-for-sale/details/564/14/microscopes/nikon-eclipse-ts100


6

With all respect I think the accepted answer underestimates the quality of current inexpensive instruments. What I have found comparing images on my recently acquired $400 scope to those produced by top-end Nikons is that it produces images which are aesthetically less appealing but nearly identical in detail. Mostly I have used it for fungi, which are ...


8

I agree with @Jeremias Brand's answer. Pretty much you will have to forget about fluorescence microscopy... you can probably find some dusty old one on eBay in your price range, but it probably won't be any good. However, the good news is that seen that in your comment you mention a) plants, b) blood, c) liquids such as wine, d) food? transmitted ...


5

This really depends on the application you have in mind. As with other precision instruments there is a huge range of qualities and applications. If you just want brigth field illumination and look at relatively big things ( approx 100 microns) then you could find something decent for the price you mention if you buy used. But if you want more complex ...



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