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

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Subject: [Leica] M Lenses on GF-1
From: jsmith342 at gmail.com (Jeffery Smith)
Date: Thu, 15 Apr 2010 15:11:23 -0500
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> <EE3E5A89-0F5A-48F1-95F0-9641A4057DFD@comcast.net>

I have yet to see a disparaging comment about the Panasonic 7-14. It 
apparently is able to keep things undistorted despite its wide angle. For 
those who like ultrawide to wide, it seems like a fantastic lens.

Jeffery


On Apr 15, 2010, at 12:12 PM, Richard Taylor wrote:

> 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.
>>> 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.
> See http://leica-users.org/mailman/listinfo/lug for more information



Replies: Reply from drodgers at casefarms.com (David Rodgers) ([Leica] M Lenses on GF-1)
Reply from r.s.taylor at comcast.net (Richard Taylor) ([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)
Message from r.s.taylor at comcast.net (Richard Taylor) ([Leica] M Lenses on GF-1)