Glen, Here is a Zeiss condenser with the back open showing the ball bearing which goes on the 'wheel' post (circled in red on the left) and which fits into the groove on the other side (also circled in red on the right). The bearing needs to sit on the post which also has a small spring, and when putting the two front and back pieces back together, try to ensure the bearing on the post fits into the 'grooves. The 'grooves' are positive stops for each of the different positions. As you turn the condenser, the ball depresses into the post and then the spring pops the bearing back out when the next groove is reached. Turning the round knurled adjusting wheel in the front moves the bearing and post side to side for alignment of the prisms or phase rings.
Sorry the pictures are a bit unfocused but you can see what needs to be done.
First picture with the bearing between the two halves:
Next, the bearing is on the spring loaded post and shows the groove which it needs to connect with:
Zeiss Condenser Wheel Bearing
Re: Zeiss Condenser Wheel Bearing
The condenser lens assembly may need to be removed. There are four screws holding it in place.
Re: Zeiss Condenser Wheel Bearing
If the lens assembly doesn't slide off easily, you will need to remove the two screws which holds the upper and lower lens assembly together, or remove the top cover. If you remove the top cover, the outside condenser ring will slide off. No big thing but you will need to replace the ring ensuring all the iris lens adjustment levers are in the proper place.
Re: Zeiss Condenser Wheel Bearing
All done. Thank you very much.
Now have a working Achromatic - aplanatic phase interference contrast condenser :) :)
Now have a working Achromatic - aplanatic phase interference contrast condenser :) :)
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Zeiss Condenser Wheel Bearing
Great! Not really hard once you open the thing up and see how it works.