case-ie
5-Jul-2014, 07:10
Hello everyone,
Sorry it became such a long story
The soft focus tube on my Dallmeyer 3A was frozen. Read a earlier thread on this, and stuck soft focus seems to be quite common and difficult to repair. I tried it anyhow and was lucky, Front and back came off easily. The soft focus tube did not, I heated the tube au bain marie –so cooking water, a plate on top, a piece of cloth on that and then the lens–, I heat the lens very slowly this way and after 1/2 an hour I was able to unscrew the soft focus tube, after another 1/2 an hour I could also unscrew the middle lens in it's own part of tubing,
but did not succeed to get it out of that part of tubing, must be possible but not necessary, I can reach everything now.
For clarity and people who want to do this there are in fact 3 parts of tube.
-The main Barrel
-the soft focus tube.
-and the tube with the middle lens. don't forget to take out the little screw before you try this
I will try to attach some pictures.
And then I have two questions;
The diaphragm seems to be turned in the barrel, when it is open the little handle stands between stops 8 and 11 so you can stop it down maybe one time . I took out the little screw but did not manage to turn the hole diaphragm to the right position how can I dislodge it without damage?
The black paint, if it is black paint, on the inside of the lens comes of very easily, apart from being careful how can I cover this again?
Thanks
Kees.
By the way I don't think I ever saw such nice pieces of glass before.
pict 1, main barrel and from top left, soft focus tube, back lens, middle lens in it's tube and front lens
pict 2 middle lens in its tube
pict 3 diaphragm in barrel.
Sorry it became such a long story
The soft focus tube on my Dallmeyer 3A was frozen. Read a earlier thread on this, and stuck soft focus seems to be quite common and difficult to repair. I tried it anyhow and was lucky, Front and back came off easily. The soft focus tube did not, I heated the tube au bain marie –so cooking water, a plate on top, a piece of cloth on that and then the lens–, I heat the lens very slowly this way and after 1/2 an hour I was able to unscrew the soft focus tube, after another 1/2 an hour I could also unscrew the middle lens in it's own part of tubing,
but did not succeed to get it out of that part of tubing, must be possible but not necessary, I can reach everything now.
For clarity and people who want to do this there are in fact 3 parts of tube.
-The main Barrel
-the soft focus tube.
-and the tube with the middle lens. don't forget to take out the little screw before you try this
I will try to attach some pictures.
And then I have two questions;
The diaphragm seems to be turned in the barrel, when it is open the little handle stands between stops 8 and 11 so you can stop it down maybe one time . I took out the little screw but did not manage to turn the hole diaphragm to the right position how can I dislodge it without damage?
The black paint, if it is black paint, on the inside of the lens comes of very easily, apart from being careful how can I cover this again?
Thanks
Kees.
By the way I don't think I ever saw such nice pieces of glass before.
pict 1, main barrel and from top left, soft focus tube, back lens, middle lens in it's tube and front lens
pict 2 middle lens in its tube
pict 3 diaphragm in barrel.