What are the pros & cons (from the illumination standpoint mostly) using flash below the condenser or behind the microscope
Is there some special advantage using it below the condenser ?
Flash adaptation to the microscope - pros & cons
Moderators: rjlittlefield, ChrisR, Chris S., Pau
Below the condenser:
+ simpler
- less space at the user side
- more difficult to get Köhler, without collimating lenses you'll get critical illumination
- different illumination of both light sources
At the rear illuminator port:
- more complex in some cases
- often not desirable with halogen lamps due to heat
+ if well implemented you get the same illumination with both light sources
+ easier to get Köhler
+ free space at the user side (and less at the rear )
In practice both systems can work very well like the images posted by forum members demonstrate.
+ simpler
- less space at the user side
- more difficult to get Köhler, without collimating lenses you'll get critical illumination
- different illumination of both light sources
At the rear illuminator port:
- more complex in some cases
- often not desirable with halogen lamps due to heat
+ if well implemented you get the same illumination with both light sources
+ easier to get Köhler
+ free space at the user side (and less at the rear )
In practice both systems can work very well like the images posted by forum members demonstrate.
Pau
Pau, thank you very much, exactly what I thought !Pau wrote:Below the condenser:
+ simpler
- less space at the user side
- more difficult to get Köhler, without collimating lenses you'll get critical illumination
- different illumination of both light sources
At the rear illuminator port:
- more complex in some cases
- often not desirable with halogen lamps due to heat
+ if well implemented you get the same illumination with both light sources
+ easier to get Köhler
+ free space at the user side (and less at the rear )
In practice both systems can work very well like the images posted by forum members demonstrate.