Bonjour chers amis Nex! Is there anyone who has overhauled Industar 61? My focus ring is not completely smooth. Thinking it's just oil or grease missing. ISO 500, f/8, 1/160, time is 07:14 AM, today. {}
More likely the grease in the focus helicoil has solidified. It's a fairly common malady in older RF lenses. I read somewhere (no idea where) that sometimes just racking the focus from end-to-end repeatedly will loosen it up. If not a CLA may be in order. Nice scene BTW.
I found a recipe for overhauling the Industar 61 and 26. Matt's Classic Cameras: Industar 26 and 61 Relubing
Wow you've a lot more guts than me... I wouldn't dare try for fear of not being able to put it back together again!
