opening and repairng miranda lenses

All my Miranda sensorex/automex lenses need repair. I don't know how to open them, I woked

form the back, removed two circular pieces but that is all, I'm mroe accustomed to older lens

designs where you could unscrew blocks quite easily. If possible I do want to retain infnity settings

and touch the lenses as less as possible. I had to completely open and then focus (finding the

correct screw thread) for a pancolar once and it was a pain.

<br>

I have a 5cm 1.8 and a 50mm 1.4 which both suffer from sticky diaphgram. One even has clean

blades so the problem is on the linkage. I want to remove as few pieces as possible.

<br>

My 28mm lens seems fine, but the diaphgraph blades leaked oil to one inner elements so that one

is hazy and needs cleaning too.

<br>

The worst is the 135mm: it seems working but it doesn't focus to infinity, thus I never really used

it. Probabably it was wrongly re-assembled. ALso some lenses inside need cleaning.

Google the "classic camera repair forum" website and search for all kinds of info on disassembling and cleaning lenses.