Voigtländer 35mm Ultron LTM filter mounting question

[einszwei7]

Hi!

I just bought a nice Ultron 35mm 1.7 in Screw mount, but i dont quite understand how to mount filters to it. I have a couple of 40.5mm filters i used on my Canon 35/2 and Jupiter 8. In bought a 40.5mm to 39mm filter from ebay but i can't screw it into the the filter thread when the hood is on or off. I'm confused, is my adapter bad? am i doing it wrong?

How do you mount your filters on this lens? I don't want to buy new filters in 39mm as they are very expensive.

Thanks in Advance

 

[Ko.Fe.]

40.5 to 39 is step down filer. You need to buy step up filter 39 to 40.5.
39 goes into the lens filter thread and 40.5 takes your cheap filter.
I have 39 and 40.5 filters. They cost same at BH and on eBay.

 

[einszwei7]

Thats what i have, i just said it the wrong way. Still wont mount.

Gesendet von meinem SM-G950F mit Tapatalk

 

[Larry H-L]

It's possible that you have an adapter with the wrong thread pitch, I seem to recall that some are .75 and some .50?

Search for 39mm filter thread pitch, and I think you'll find an answer for your lens.