Karl Hermann
Newbie
I am the owner of a Certo Super Dollina II produced after the WW II. I tried to demontage the objective because I noticed fungus on the surface of the lenses.
The demontage of the front lens was no problem. But I had no success in order to remove the back lens. The lens is fixed with rings. The first ring was no problem. But the other rings are rotating but they do not the leave the place where they belong. I am only able to move the rings in a circle.
What can I do? Thank you for your help.
The demontage of the front lens was no problem. But I had no success in order to remove the back lens. The lens is fixed with rings. The first ring was no problem. But the other rings are rotating but they do not the leave the place where they belong. I am only able to move the rings in a circle.
What can I do? Thank you for your help.
Attachments
Beemermark
Veteran
What is the meaning of "demontage"?
CharlesDAMorgan
Veteran
Un mount - remove.
I can't help, but welcome and I'm sure someone who can help will be along.
I can't help, but welcome and I'm sure someone who can help will be along.
Karl Hermann
Newbie
Thank you for the welcome.
I am living in Germany (Halle (Saale).
I intend to disassemble the lens in order to remove the fungus.
I am living in Germany (Halle (Saale).
I intend to disassemble the lens in order to remove the fungus.
Dralowid
Michael
From memory...I used to have a few Dollinas...you may find it easier to dismantle the lens if you remove the whole shutter and lens assembly in one go.
To do this you need to undo the outer ring in your picture, the one with only two notches in it (I think).
Beware.
Be very careful with the shutter release linkages which are delicate and from memory complicated...also...do not stick your tools through the bellows!
To do this you need to undo the outer ring in your picture, the one with only two notches in it (I think).
Beware.
Be very careful with the shutter release linkages which are delicate and from memory complicated...also...do not stick your tools through the bellows!
Karl Hermann
Newbie
Thank you for your answer and your help. I will try it.