Step up ring for Switar 10mm Preset Lens

[Jordan Beard]

Does anyone know the exact front thread size of the Switar 10mm Preset lens? It seems like an odd size and I'm finding it difficult to track down a suitable step up ring. Thanks.

[Heikki Repo]

They are Series #5 filters at least on my Switars. There is a separate filter holder and filters for it. The issue is, however, that at least on my 10mm Switar the filter holder and filters make a vignette...

[Heikki Repo]

Search for "Tiffen series 5" on Ebay.

[Jordan Beard]

Thanks for that info. I'm looking for a step up ring to use larger threaded filters. Do you know of any step up rings that adapt series 5 lens threads to a modern thread like 52mm?

[Heikki Repo]

If you find one, please tell me :)

Here's further info on Series filters and the thread sizes 

https://www.apotelyt.com/photo-accessory/series-filters

[Jordan Beard]

It looks like a few people have made customs step up rings over the years but I can't find anyone who still has one for sale. http://www.brentfinley.com/switar.htm

[Philip Forrest]

Was it not made for a press on Series VI adapter?

Phil Forrest

[Heikki Repo]

Well, mine is not a preset so perhaps they are different.

[Jordan Beard]

Yes, I think the Preset version has a larger thread: M38 x 0.5 pitch.

[Dom Jaeger]

https://cinematography.com/index.php?/topic/796-kern-switar-lenses-c-mount/

 

[Jordan Beard]

Thanks for linking that thread Dom. I'll keep on the look out for a M38 x 0.5 step up ring. I'd happily buy one if anyone has one. I might have a friend with a machine shop make a few custom rings.

[Jean-Louis Seguin]

You can order one from Rafcamera

 

Edited July 23, 2020 by Jean-Louis Seguin