Summitar Filter Size?

[Leigh Youdale]

I've got an f2/50 collapsable Summitar. Am I correct in thinking that the appropriate filter size is either A36 tapered screw mount or a 42mm slip-on?

[sirius]

There are no threads to screw a filter on my Summitar.

[Nikon Bob]

Both my Summitars accept the Tiffen series VI tapered adaptor.

Bob

[FrankS]

There are no threads to screw a filter on my Summitar.

There likely are filter threads there, but they are difficult to notice, as they are located very close to the front element.

[Marc-A.]

There likely are filter threads there, but they are difficult to notice, as they are located very close to the front element.

Frank's right. The thread is between the front element and the Leica inscription.

I've got only one filter for my Summitar, a green one (+1); it's one made by Leitz for Summitar lenses. Don't know the size: when I measure the diameter, I read 36mm on the rule; that's strange - is that correct?
You can find some on ebay, though they are rare.
Cheers,
Marc

[bob cole]

I've got an f2/50 collapsable Summitar. Am I correct in thinking that the appropriate filter size is either A36 tapered screw mount or a 42mm slip-on?
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Here's one from Ebay that sold for $30 usd:

# 200107468839