step-down ring for my Lomo´s 35mm and 75mm

[Daniel Silwerfeldt]

Hi

I need some step-down rings for my Russian Lomo OCT-19 lenses. The front thread is bigger than 82mm and it seems to be 83 or 84mm.

Does somebody know for sure? Is there a standard?
Can I get step-down rings from 83 (or 84)mm - 77 or even lower?
Where can I buy those?

I want to use my ND filters and other stuff...

Cheers

 

[Mathias Erichsen]

Did you figure this out?
I think some of my Lomos are 85mm front thread...

Cheers

 

[RobMNeilson]

I'd love to know the answer to this as well. I have a 75mm lomo that I was going to mate with a square front anamorphic attachment with step rings, and I'd love to know what I need to find.