Re: Multi-illumination systems
- From: pennine56@xxxxxxxxxxx
- Date: Tue, 26 May 2009 06:01:13 -0700 (PDT)
On May 26, 12:41 pm, UKoncology <UKOncol...@xxxxxxx> wrote:
On 24 May, 15:11, Kevin Cunningham <sms...@xxxxxxxxxxxxxx> wrote:
On May 23, 6:45 pm, Rich <rander3...@xxxxxxxxx> wrote:
Nikon offers condensers that support a number of illumination systems
(Phase, DIC, Darkfield) simply by having different annuluses slotted
into the universal turret they provide. Was this kind of condenser
only made available in infinity-corrected systems, or did Zeiss or
Leitz ever produce these condensers for 160/170mm microscopes?
That kind of condenser was and is made by every one. There were and
are phase condensers, Type I and Type II DIC condensers with phase and
DF systems built by every one. I've never met anyone, by the way,
that actually uses the DF.
Thanks,
Kevin Cunningham
SMS
Oi! I do! I really like my dunkelfeld, oiled Zeiss condenser......
-h- Hide quoted text -
- Show quoted text -
I agree. As well as for darkfield, the 'D' setting on my Zeiss phase
condenser is excellent for annular oblique with high NA objectives,
maintaining full res compared with phase. Also the setting works well
when water immersed for transmitted darkfield fluorescence studies at
low to mid powers of brighter emitting subjects such as chlorophyll
autofluorescence of algae, moss leaves etc using cheap barrier and
exciter filters above and below subject. A consumer digital SLR
readily captures the fluorescent imagery.
David
.
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