My question is: If my microscope had a top entry specimen holder, instead of a side entry holder, what additional option(s) should I have to increase the contrast with the same constraint that I only have a single objective aperture? Why would this option work?

Any ideas are welcome. Thanks in advance!

  • $\begingroup$ What is a top entry specimen holder? What kind microscope is it? $\endgroup$ – rhill45 Feb 22 '15 at 5:36
  • $\begingroup$ If your doing EM you can ignore, out of my area of know how :-( $\endgroup$ – rhill45 Feb 22 '15 at 5:37

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