phansen39 wrote: ↑Sun Nov 27, 2022 12:31 pm
It looks like the prisms block the darkfield on the bd objectives?
Yes, there is no darkfield DIC; pull out prism slider for darkfield.
For completeness, eBay currently lists an Optiphot DIC BD Plan Nosepiece
shown with prisms... but it is bent:
https://www.ebay.com/itm/324897639962
Optiphot 210 tube length BD DIC nosepiece has a compensating lens above the turret:
Whether an unbent EPI nosepiece part is compatible with bent EPI DIC part seems unlikely.
Weirdly, there are a couple of listings for Optiphot 100 DIC microscopes,
which are Optiphot 2 frames with vertical illuminators having a tube lens for infinity objectives,
but they instead have finite Optiphot DIC BD nosepieces and/or objectives:
- this one even lists 210 objectives:
https://www.ebay.com/itm/202650186163
- This one does not, but some objectives have finite knurling:
https://www.ebay.com/itm/204074584066
This one appears to have Optiphot 100 EPI DIC parts that match:
https://www.ebay.com/itm/224572548833