Can phase contrast objectives be used for brightfield observation?

Yes. Phase contrast objectives can also be used for brightfield microscopy.

• Move the phase contrast condenser to the “O” position
• Apply standard Köhler illumination

• The brightfield images are almost comparable to those obtained with a standard brightfield objective.
• This is ideal when you want to switch temporarily from phase contrast to brightfield without changing objectives.

Are you unsure whether your objectives are suitable for the desired observation method?