rolleiflex1954
Member
I picked up 3.5B MX-EVS. I'm planning to find someone to give it a CLA.
This 1954 K4B is the earliest version with EVS. The aperture dial does not have a push button in the center. No button and only the words "Germany" are printed. Is it possible to modify this aperture dial with the 3rd K4B knob which allows one to turn the inner portion of the Aperture dial 90 degrees to engage or disengage EVS lock? Would it just be a simple aperture dial knob part swap? Or more involved?
I noticed the below issues. Are they all likely caused by gummy, aged or evaporated lubrication? Or is it probable there are worse issues afoot?
This 1954 K4B is the earliest version with EVS. The aperture dial does not have a push button in the center. No button and only the words "Germany" are printed. Is it possible to modify this aperture dial with the 3rd K4B knob which allows one to turn the inner portion of the Aperture dial 90 degrees to engage or disengage EVS lock? Would it just be a simple aperture dial knob part swap? Or more involved?
I noticed the below issues. Are they all likely caused by gummy, aged or evaporated lubrication? Or is it probable there are worse issues afoot?
- When cranking for a test fire, the shutter blades open up and close during the crank.
- The shutter seems gummy and doesn't fire.
- The shutter release counts down 10 seconds and clicks, but shutter doesn't fire
- 'When rotating the shutter dial, the EV coupled shutter and aperture dial seems a bit stiff.