Vorticella on a commercial stained slide, viewed using Zeiss IM microscope at different magnifications. Damian and I have previously seen Vorticella live in local pond water samples – see previous posts.
I used the Bresser MikOkular camera in “new” trinocular head (second hand from ebay) – this differs from previous trinocular head in that this is the one that is recommended in the Zeiss IM microscope handbook. I noted that the previous head, although it works, has small black ring around outside of field of view that I assume means field stop is too small for scope. This new one does not have this. This new one also provides 23mm ocular attachment on trinocular port, into which the Diagnostic Instruments adapter fits directly without needing a clamp.
I also tried out a dark field condenser on microscope today – did not work well – not sure why – so photos below are back to the phase condenser that came with the microscope, used without phase annulus (i.e. in bright field mode).
x63 objective (slide upside down so light only has to go through coverslip in this inverted microscope – 63x objective has only limited working distance). This is a panorama of 17 panes, joined using Microsoft’s Image Composite Editor: