- Joined
- Dec 14, 2014
- Messages
- 1
- Format
- Medium Format
Hi
I have some lenses for my GX680, unfortunately the aperture diaphragm doesn't close anymore on my 135 5.6. As repair price is quite close or even higher than the price of another used lens i would like to have a look at the issue myself. I do have some experience in fixing lenses and mechanical cameras.
I just can't find out how it opens, there are 5 screws that can be removed but then nothing moves. I feel that the metal part that carries the filter ring might have to be unscrewed, it doesn't want to come off too easily however.
Can somebody give me a few pointers where to look next?
Of course I would love to have a service manual so if you have one and are willing to share a pdf or such at a reasonable price, i would be more than happy. The (unauthorized) reprints that can be found would cost me close to 100 including shipping customs etc.
-Tom
I have some lenses for my GX680, unfortunately the aperture diaphragm doesn't close anymore on my 135 5.6. As repair price is quite close or even higher than the price of another used lens i would like to have a look at the issue myself. I do have some experience in fixing lenses and mechanical cameras.
I just can't find out how it opens, there are 5 screws that can be removed but then nothing moves. I feel that the metal part that carries the filter ring might have to be unscrewed, it doesn't want to come off too easily however.
Can somebody give me a few pointers where to look next?
Of course I would love to have a service manual so if you have one and are willing to share a pdf or such at a reasonable price, i would be more than happy. The (unauthorized) reprints that can be found would cost me close to 100 including shipping customs etc.
-Tom