Archived posting to the Leica Users Group, 2010/04/15

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Subject: [Leica] M Lenses on GF-1
From: r.s.taylor at comcast.net (Richard Taylor)
Date: Thu, 15 Apr 2010 13:12:57 -0400
References: <j2x6e74b3701004150617q6674f861n2e043329e2e08ce5@mail.gmail.com> <5564A951-14E1-4477-A297-C1AD95FD1AE6@comcast.net> <CDE7B56DB012459BAC2A5B8D992DCC66@jimnichols> <3DBE0CFF-F301-43BE-8E22-1A060F2A4244@comcast.net> <B3D336C5-AFAC-40A7-8F50-BF719BC57A1C@frozenlight.eu>

I just ordered the Panasonic 7-14 and hope to have it tomorrow.  I had been 
putting off extending my micro-4/3rds system but finally decided I wanted 
something considerably wider than the 20 and it seemed to be the best 
choice.  

Regards, 

Dick



On Apr 15, 2010, at 12:48 PM, Nathan Wajsman wrote:

> The only M lens I use a lot on my GF-1 is the 90mm Elmarit, partly because 
> I am not too keen on it on my M8 (prefer the 75mm there). It does fine, 
> but in fairness I use it mostly for far-away subjects, i.e. on infinity or 
> thereabouts. Given the I have the 20mm pancake, I have not felt the need 
> to try the shorter M lenses in my stash.
> 
> Next month I will pick up either the 7-14mm Olympus or the new 9-18mm to 
> complete my GF-1 outfit on the wide end.
> 
> Nathan
> 
> Nathan Wajsman
> Alicante, Spain
> http://www.frozenlight.eu
> http://www.greatpix.eu
> http://www.nathanfoto.com
> 
> Books: http://www.blurb.com/bookstore/search?search=wajsman&x=0&y=0
> PICTURE OF THE WEEK: http://www.fotocycle.dk/paws
> Blog: http://www.fotocycle.dk/blog
> 
> 
> 
> 
> 
> 
> On Apr 15, 2010, at 5:08 PM, Richard Taylor wrote:
> 
>> There should be.  SLR lenses need to be further away from the sensor than 
>> M lenses in order to clear the mirror, are usually retrofocal, and should 
>> have better image quality on 4/3rds sensors.  
>> 
>> I was tempted to buy an 20mm R lens to try on the G-1 but after the 
>> introduction of the 20mm Lumix pancake I put that off because the Lumix 
>> was such a good performer and far smaller than the R lens. 
>> 
>> I think there were some postings on R lenses on micro 4/3rds cameras but 
>> can't remember when.  I search of the archives might turn them up.  
>> 
>> Regards, 
>> 
>> Dick
>> 
>> 
>> 
>> On Apr 15, 2010, at 10:48 AM, Jim Nichols wrote:
>> 
>>> Hi Richard,
>>> 
>>> I use Leica-R lenses on my Olympus E-1.  Is there a lot of difference 
>>> between the Summicron-R and the Summicron-M design?
>>> 
>>> Jim Nichols
>>> Tullahoma, TN USA
>>> ----- Original Message ----- From: "Richard Taylor" <r.s.taylor at 
>>> comcast.net>
>>> To: "Leica Users Group" <lug at leica-users.org>
>>> Sent: Thursday, April 15, 2010 9:42 AM
>>> Subject: Re: [Leica] M Lenses on GF-1
>>> 
>>> 
>>>> The best way to think about this is to think of each pixel as a tiny 
>>>> bucket with steep sides and the light sensitive area at the bottom.  
>>>> Light must go straight in in order to be detected.  Light arriving at 
>>>> anything other than almost straight in is either lost or scattered.
>>>> 
>>>> That's why the sensors in the M8 and M9 have the offset lenses on top 
>>>> of the sensor.
>>>> They allow the sensor to respond better to the off-axis light coming 
>>>> out of M-type lenses.
>>>> 
>>>> SLR lenses are usually retrofocus designs that send the light close to 
>>>> straight in to the sensors and therefore work better on the micro 
>>>> 4-3rds cameras than M lenses do.
>>>> 
>>>> Dick
>>>> 
>>>> (Who works with sensors like these in the infrared for space missions.)
>>>> 
>>>> 
>>>> 
>>>> On Apr 15, 2010, at 9:17 AM, Simon Ogilvie wrote:
>>>> 
>>>>>> I'm also perplexed at how Contax G lenses can be materially better on
>>>>>> Micro Four Thirds than are Leica M lenses, or even CV lenses for that
>>>>>> matter. While I haven't used all on Micro Four Thirds I have used them
>>>>>> all on film and for the most part they're all pretty good. Thus I'm
>>>>>> curious as to why the performance would be so different on Micro Four
>>>>>> Thirds. What kind of adapters are you using?
>>>>> 
>>>>> I agree - one of the primary reasons I bought into the 4/3 system was
>>>>> because it allowed me to use my Leica M (and Voigtlander) lenses which
>>>>> don't see much use any more as I shoot very little film these days.
>>>>> The results using these lenses were very disappointing.  The Panasonic
>>>>> 14-45 covers the range of nearly all of my M lenses anyway, so as the
>>>>> results seem better and it's much more convenient to use, I stick with
>>>>> the zoom.    I was surprised that the results from the Contax G lenses
>>>>> looked so much nicer.  Why this is the case when the Leica lenses are
>>>>> so nice with film I cannot explain.  The adapters are the Voigtlander
>>>>> one for the Leica-M lenses, and an adapter imported from Hong Kong for
>>>>> the Contax G with a little manual focus wheel that engages with the
>>>>> focussing drive on the lenses.
>>>>> 
>>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> 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
>> 
>> 
>> _______________________________________________
>> Leica Users Group.
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>> 
> 
> 
> _______________________________________________
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Replies: Reply from jsmith342 at gmail.com (Jeffery Smith) ([Leica] M Lenses on GF-1)
In reply to: Message from simon.ogilvie at gmail.com (Simon Ogilvie) ([Leica] M Lenses on GF-1)
Message from r.s.taylor at comcast.net (Richard Taylor) ([Leica] M Lenses on GF-1)
Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] M Lenses on GF-1)
Message from r.s.taylor at comcast.net (Richard Taylor) ([Leica] M Lenses on GF-1)
Message from photo at frozenlight.eu (Nathan Wajsman) ([Leica] M Lenses on GF-1)