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More on Microscopes
(moron microscopes?)
(moron microscopes?)
Field of View,
Resolving Power
and
Depth of Field
Resolving Power
and
Depth of Field
Field of View
•Portion of specimen viewable at the sa=
me time
•As magnification increases -> Field=
of
view decreases.
<=
span
class=3DBB style=3D'position:absolute;left:-3.76%'>•Lowest po=
wer
objective has widest field of view. That’s why i=
t is
used to “scan” the slide.
Resolving Power
•Ability to distinguish two points as <=
/span>separate
and distinct instead of smooshing them together.
•Impressionist Art
•As magnifying power increases -> Resolving
power increases…to a point
Sooooooooooooo……..
Where was resolution seen in=
the
last lab?
Depth of field
<=
span
class=3DHBB style=3D'position:absolute;left:-3.76%'>•Depth or
“zone”, from background to foreground that
is in focus at once
![](3D"slide0003_image002.jpg")
![](3D"slide0003_image004.jpg")
Shallow DOF
Deep DOF=
Depth of field
<=
span
class=3DHBB style=3D'position:absolute;left:-4.85%'>•In micro=
scopes,
as magnifying power increases -> Depth of Field
decreases (gets shallower)
![](3D"slide0004_image006.jpg")
Sooooooooooooo……..
Where was depth of field see=
n in
the last lab?
' + ENDSHOW_MESG + '
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