<p>Hi,<br>
It happened for 3 Kiev 4 so far and i am buying a new one.<br /><br />I have a Contax Sonnar f2 lens and i got to use it on something accesible pricewise.<br /><br />The results of the lens and Kiev body were very good, it seems the rangefinder is spot on , nice pictures, but this ribbons keep rupturing (often quite soon after 2-3 films).<br /><br />I heard from a camera repair guy here in Bucharest that the issue is old age combined with a design flow where this ribbons roll on some jagged channels (bad quality control) and they don't use some wheels to be guided through like Contax (don't know if this is real). He said somethign about using soap on them.<br /><br />Do you guys know any method to improve the lifespan of this ribbons without replacing them. Is the soap thing a good idea?<br /><br />Best regards</p><div></div>