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Subject : [Anaglyphs] Closer Than Close-Up Finale
From : "Marshall Rubin"
To :
Date : Fri, 25 Mar 2011 08:31:45 -0400

91583_Microscope_Finale.jpg :

 

The stage is set!  The stage of the microscope is the flat panel that accepts specimens for close examination.  The subjects
being scrutinized are usually mounted on a rectangular piece of transparent glass, (a slide) that is then secured to the stage which
is then illuminated from below. 
 
As shown here the electric illumination device is nearest to the bottom of the scope.  The device itself allows for regulating brightness
by way of a dial on the external power box (not shown).  But that's not all.  There is a tiny swiveling lens that adjusts light intensity
to aid in regulating contrast.
 
If that weren't enough, the device just below the stage further regulates the light that's to go through the hole in the stage.  Think
that's enough?  Nope.  Just in case the user prefers light from an outside source, included with the scope is a combination
flat and concave mirror that replaces the electric unit.  But there's ONE MORE option.  The microscope kit also comes with a frosted
glass disc for diffusing the light by eliminating shadows, AND a deep blue filter is supplied.  I'm not sure what that's used for.  My
theory is that the filter converts the reddish incandescence of the electric illuminator to that which simulates daylight.
 
One last thing:  Although this microscope has two eyepieces, stereoscopic viewing isn't possible because only one
corresponding objective lens can be used at a time.  However I have purchased a stereo microscope, and once it's received
I hope to post some 3-D microscopic views.
 
End of series.
 
Marshall

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