A
B
6.
Center the condenser with the screws of the
condenser
7.
The condenser is now ready for use
8.
To use the 100x lens and/or the special 100x
lens with built-in iris aperture, you must also put
immersion oil on the prepared slided
9.
Focus the lens. On the S100x/1.25 oil immersion
objective (A) and S100x/1.25 IOS super contrast
objective (B) you can adjust the background by
changing the opening of the inner lens aperture.
The aperture canbe changed by
turning the ring
11.1 Supplementary Manual for Darkfield Model 78904-27 (cont.)
20