Marine Foram
Posted: Tue Jul 16, 2019 5:40 am
Planapo 63x/1.4, Oblique, 190µm length, stacked in Photoshop, Marine sample, Alboran Sea
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Cool, thats how I get oblique out of my condenser too (never tried with the 63/1.4 planapo though). Interesting I thought this method is an unintended feature of the achromat aplanat condenser but in fact its the method suggested by Zeiss in their Phomi II manual (p. 31)75RR wrote: I use the rotary condenser to achieve Oblique. I offset the Brightfield port and vary the condenser diaphragm size. This creates effects similar to some dedicated Oblique stops.
Curious that they suggest just offsetting the iris rather than both the iris and the port itself.Interesting I thought this method is an unintended feature of the achromat aplanat condenser but in fact its the method suggested by Zeiss in their Phomi II manual (p. 31)
http://www.microscopy-uk.org.uk/zeiss/zeiss_pmII.pdf
They do instruct to move the port: After the aperture iris has been considerably closed (Cite from p.31), "...Move the revolving disk of the condenser far enough of its position J..."75RR wrote:Curious that they suggest just offsetting the iris rather than both the iris and the port itself.Interesting I thought this method is an unintended feature of the achromat aplanat condenser but in fact its the method suggested by Zeiss in their Phomi II manual (p. 31)
http://www.microscopy-uk.org.uk/zeiss/zeiss_pmII.pdf
Here is a link to a short article about Zeiss Phase Condensers in case you have not seen it.
http://www.microscopy-uk.org.uk/mag/art ... denser.pdf
Misread it! Thanks for the heads upThey do instruct to move the port: After the aperture iris has been considerably closed (Cite from p.31), "...Move the revolving disk of the condenser far enough of its position J..."