Archived posting to the Leica Users Group, 2007/05/08

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Subject: [Leica] Lens/Filter questions
From: jeffmatsler at amaonline.com (Jeff Matsler)
Date: Tue May 8 11:13:47 2007
References: <Pine.LNX.4.62.0705071306040.31514@mail.2alpha.com> <7DF26AAB-2061-4EEF-83ED-EEF470C6D4CC@btinternet.com>

Hello,

My internet provider had a cut cable and I have missed a day's worth of 
emails.

Did anyone answer Peter's question about the 40 to 39 ring?

I have a Minolta 13.5cm f/4 that I believe has a 40mm filter size.  I would 
also be interested in SOMETHING that allowed me to use either of my other 
series of filters and shades on it, as I can't find anything in the 40mm 
format in the places I know to look.

If someone has a source of 40mm filters and a telephoto shade (this lens 
definitely would benefit from one) or a step-up / step-down ring to do the 
same, please let me know.

Jeff M

----- Original Message ----- 
From: "Frank Dernie" <Frank.Dernie@btinternet.com>
To: "Leica Users Group" <lug@leica-users.org>
Sent: Tuesday, May 08, 2007 5:21 AM
Subject: Re: [Leica] Lens/Filter questions


> Why not sell the DR and buy a good contemporary Rigid which is  optically 
> identical and only cheaper because of the (much) more  simple mount?
> Frank
>
> On 7 May, 2007, at 21:07, Peter Klein wrote:
>
>> LUG:  A couple of obscure lens and filter questions:
>>
>> 1.  One of my favorite lenses is my 50/2 Dual-Range Summicron.   Which 
>> will not mount on a certain digital camera.  What are the  chances of my 
>> finding a broken or bad-glass Rigid Summicron, into  which I could screw 
>> my DR's lens head?  How much might that cost  me?  (I realize the mount 
>> focal length would have to match).
>>
>> 2.  Is there such a thing as a 40-39mm filter step-down ring?  That's 
>> forty, not forty point five.  The purpose would be to use a  39mm filter 
>> on an old Canon 50/1.8 lens. (If not, I might have to  resort to the 
>> "dental floss in the filter threads" trick, but it's  a rickety 
>> solution.)
>>
>> 3. I have the early 1980s 90/2 Summicron with a 49mm filter  thread.  If 
>> I were to use a 49-46mm step-down ring (which I know  exists) and mount a 
>> 46mm filter on it, would it vignette?
>>
>> Yes, these questions involve that certain digital camera, adapting 
>> lenses to same, and trying not to buy to many off-brand filters  while 
>> waiting to get the free ones.
>>
>> --Peter
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
> 


Replies: Reply from len-1 at comcast.net (Leonard Taupier) ([Leica] Lens/Filter questions)
In reply to: Message from pklein at 2alpha.net (Peter Klein) ([Leica] Lens/Filter questions)
Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] Lens/Filter questions)