[Leica] Lei-ko R lens to S body adapter ring

[Charlie Chan]

Hi Doug,

I think that the 2x APO might foul the mirror on the S. Michael says in his instructions that the rear of the R lens must not protrude back behind the rearmost past of the adapter.

Having looked, the 1.4x APO shroud does not protrude as far back as the 2x APO.

Best wishes,

Charlie


On 27 Aug 2014, at 23:01, Doug Herr <wildlightphoto at earthlink.net> wrote:

> :)
> 
> Is mirror clearance the problem with the 2x APO extender?
> 
> I lost my dropbox connection in a hard drive crash earlier this summer.  I'll try to set it up again.
> 
> Doug
> 
> -----Original Message-----
>> From: Charlie Chan <topoxforddoc at btinternet.com>
>> Sent: Aug 27, 2014 2:53 PM
>> To: Leica Users Group <lug at leica-users.org>
>> Subject: Re: [Leica] Lei-ko R lens to S body adapter ring
>> 
>> Good news. Just to say that I have just tried my 3 cam 280/4 with the 1.4x APO converter - infinity focus is ok!!! Am a very happy bunny.
>> 
>> Charlie
>> 
>> www.charlie-chan.co.uk
>> 
>> 
>> On 27 Aug 2014, at 21:07, John McMaster <john at mcmaster.co.nz> wrote:
>> 
>>> I can send you links to a rough comparison of S2 /Mamiya 300mm f2.8 APO (with and without 2x) compared to R9/DMR with 280mm f4 APO (1993 model, with and without 1.4x APO), I may take another look at the adapter but I now have Leica S 180mm as well as the Mamiya...
>>> 
>>> john
>>> 
>>> -----Original Message-----
>>> 
>>> Hi Doug,
>>> 
>>> OK, I never realised that the focussing pitch caged from 3 cam to ROM. My copy is indeed an older 3 cam version S/N 36589XX, manufactured 1994.
>>> 
>>> Charlie
>>> 
>>> www.charlie-chan.co.uk
>>> 
>>> On 27 Aug 2014, at 17:40, Doug Herr <wildlightphoto at earthlink.net> wrote:
>>> 
>>>> Charlie Chan wrote:
>>>> 
>>>>>>> 
>>>> This is for those, who would love to use some of their R lenses on a new S (006) or S2 body. I have just bought an adapter ring from Michael Leibfritz in Germany
>>>> 
>>>> www.lei-ko.de
>>>> 
>>>> It cost 500 euros including overnight european courier delivery. It is beautifully made. You can only use it for lenses of 180 or longer.  The new S lenses top out at 180 focal length. The rumoured 350 S lens may well not happen. Focus is manual of course with stop down metering. The max focus distance is limited, unless you send the lenses to Leica for adjustment.
>>>> 
>>>> ...
>>>> 
>>>> 280/4 APO - max focus distance at infinity point on lens barrel is about 20m, but my copy goes beyond infinity to the "feet / m" mark on the barrel (which is 40m + in real life).
>>>> <<<
>>>> 
>>>> There was some variation in 280mm f/4 APO production.  My original copy (originally 3rd-cam, now getting its biennial diaphragm de-gumming) is like Charlie's lens.  My newer copy (ROM) focuses only slightly past infinity and even has a different focussing pitch.  Sounds like the older version is a better fit for the S2 + lei-ko adapter.
>>>> 
>>>> 
>>>> Doug Herr
>>>> Birdman of Sacramento
>>>> http://www.wildlightphoto.com
>>>> 
>>> 
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>> 
>> 
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