EdwardKaraa
Well-known
One of my ZM lenses (35/2) is slightly front focusing. The RF is very accurate at infinity so it's not an RF issue. Before sending it to Zeiss I would like to ask if this is something I can try myself or with the help of a local technician. Does anyone know the procedure and if it is simple enough to be done locally?
Thanks for your advice.
Thanks for your advice.
Robert Lai
Well-known
Alas, this is not a do it yourself project. M type cameras have adjustment for minimum focus (eccentric mounting of the cam follower roller), as well as infinity. Then, there is the lens to check also. The best solution is to send the lens and the camera for calibration. You local tech may be able to do it if they service a lot of rangefinders.
EdwardKaraa
Well-known
Robert, thanks for your reply. Luckily I have narrowed down the problem to be in the lens, as I have taken test shots with 3 camera bodies and 5 different lenses. The front focusing is consistent on all 3 bodies, while the other lenses are reasonably accurate. I am preparing to send the 35 to Oberkochen tomorrow, but was hoping someone would give me a magical solution beforehand 
mdarnton
Well-known
I think your chance of getting bad advice here with this problem would be extremely strong; just send it in to the guys who actually know how it works.
EdwardKaraa
Well-known
Thanks for the advice. My lens arrived this afternoon at Zeiss. Hopefully they can do a quick job.
EdwardKaraa
Well-known
Anyone knows how long does it normally take to recalibrate a lens at Oberkochen? The folks over there don't seem to be very talkative.
brbo
Well-known
I sent two ZM's (for wobble fix & calibration) to Oberkochen on two separate occasions. If I remember correctly, both were back in about 3 weeks.
There was an approx. 7-day silence, then a repair cost estimation email (which I promptly agreed with) and then after some 7-10 days an email notifying you that your lens was shipped back to you. An invoice followed some two weeks later.
At the time I wasn't too impressed by the wait, but then I sent one lens to Leica... Horror.
There was an approx. 7-day silence, then a repair cost estimation email (which I promptly agreed with) and then after some 7-10 days an email notifying you that your lens was shipped back to you. An invoice followed some two weeks later.
At the time I wasn't too impressed by the wait, but then I sent one lens to Leica... Horror.
EdwardKaraa
Well-known
marduk
Well-known
Hi Borut,
may I ask you what kind of work they did on your lenses and how much did it cost? I'm thinking where to send a 25mm Biogon with stiff focus (dry lube and tight point near infinity), also I'd like to modify it to bring up the 24mm framelines on the M8. I would be happy if they can make it for under 200 euro including shipping..
marduk
Well-known
They quoted the cost of repair 150-220 euro plus VAT and this includes a new flange. I think I'll give it a try but ask for a quotation before repair later on.
marduk
Well-known
So the lens is back and works perfectly. The turnaround time is impressive: I got the lens back in about 7 working days and this includes the cost estimate and return shipping (but then I live not very far from them)! It cost me 168.50 for the CLA and new flange plus VAT.