Adding Simple Darkfield Stop to a Nikon Dovetail Condenser

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carlh6902
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Adding Simple Darkfield Stop to a Nikon Dovetail Condenser

#1 Post by carlh6902 » Wed May 04, 2016 3:04 pm

Submitting this article for consideration.
DF_Insert_Rev_2.pdf
(832.34 KiB) Downloaded 824 times
Here is a complete index of stuff I've written:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8

Carl
Last edited by carlh6902 on Mon Aug 14, 2017 8:08 pm, edited 1 time in total.
--- If you're in the Kansas City area and you need help with an Olympus BH-2 scope, PM me. I love to work on these things ---

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exmarine
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Re: Adding Simple Darkfield Stop to a Nikon Dovetail Condenser

#2 Post by exmarine » Sun May 15, 2016 11:20 am

:D A different method is to use 'Blue Tack' it works wonders.
Thank you :shock:
Best regards
exmarine :x

uses Watson 'Service' 1950 compound.
uses Watson Stereo 1960 ish.

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zzffnn
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Re: Adding Simple Darkfield Stop to a Nikon Dovetail Condenser

#3 Post by zzffnn » Sun May 15, 2016 2:28 pm

Many DIY methods work well up to NA 0.65 (common for 40x objective). Above that, you really need an oiled darkfield (cardioid or paraboloid) condenser, for decent imagery.

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