Archived posting to the Leica Users Group, 2014/02/21

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Subject: [Leica] OT - Sony Alpha 7R
From: steve.barbour at gmail.com (Steve Barbour)
Date: Fri, 21 Feb 2014 19:19:54 -0800
References: <CF2BB9E0.185C5%mark@rabinergroup.com> <5321466E-C881-40C2-AB08-4C66A30B3654@gmail.com> <CAFfkXxsWcCic2qhJegHpoerEnFh1ZB7zm6_47qHdVhUkn9hGww@mail.gmail.com> <2B9DDEAB-D9F4-4E7F-B0CD-663F5090D7D7@gmail.com> <3F24E644-A878-4172-AF84-EEEDBBAF40DC@gmail.com> <1F81C9A1-127D-466E-BA2E-DBD3A9E9F883@gmail.com> <FE5E005E-0ED3-405D-ABAE-20D035F8AD35@gmail.com> <CAE3QcF4KERPt8rUy5+xhoSBFcnzRJ_ET7MZT8SiGHYxbb7xfTw@mail.gmail.com> <AC19D93E-CCEF-4953-B261-E0148B3CA7B8@gmail.com> <CAE3QcF47KOy6jQgbQx18Xgnp9vzLkEw+4PDPW4jKs5bO_AReZQ@mail.gmail.com>

On Feb 21, 2014, at 4:48 PM, Geoff Hopkinson <hopsternew at gmail.com> wrote:

> Did I misquote you?! ;-) Just a comment that the LUG seems hardly a gung ho
> Leica forum to me!



You are right Hoppy, it wasn't always like that... what year did you join?


s











> 50 something posts in this Sony thread though.
> 
> 
> Cheers
> Geoff
> http://www.pbase.com/hoppyman
> 
> 
> On 22 February 2014 10:42, Steve Barbour <steve.barbour at gmail.com> 
> wrote:
> 
>> 
>> 
>> Sent from my iPhone
>> Steve Barbour
>> 
>> On Feb 21, 2014, at 4:23 PM, Geoff Hopkinson <hopsternew at gmail.com> 
>> wrote:
>> 
>> Leica raah raah forum !!
>> 
>> thanks for the spelling help Hoppy
>> 
>> s
>> 
>> 
>>> On Feb 22, 2014 1:00 AM, "Steve Barbour" <steve.barbour at gmail.com>
>> wrote:
>>> 
>>> 
>>> On Feb 20, 2014, at 5:46 PM, Jim Laurel (gmail) <jplaurel at gmail.com>
>>> wrote:
>>> 
>>>> All I've seen, Steve, is some anecdotal evidence. Don't get me started
>>> on Ken Rockwell, but on this page, he does have some examples of a 21mm
>>> Super Elmar-M adapted to the A7 that appears to show sensor reflections
>> and
>>> smeared corner detail. Lurking around the dpreview forums, I've seen
>> others
>>> report similar results. But of course it's hard to know for sure
>>>> 
>>>> http://www.kenrockwell.com/tech/comparisons/2013-12-leica-sony-canon/
>>> 
>>> hi Jim, we are happy to see you back. My point of course is....we don't
>>> exactly have PROOF of anything, though we do have anecdotal and selected
>>> stories by people with an agenda. No completeness or worst case scenarios
>>> by unbiased individuals with data for the leica M240, as well as the Sony
>>> A7 and A7r. Selected stories to make a  point by people who wish to make
>> a
>>> point. No semblance of a real unbiased careful comparison. All of this is
>>> then presented to a leica rah rah forum by people who like leica, whether
>>> they use one or not.. I would like to know what the real facts are, based
>>> on real world data, with carefully done comparisons. And if the cameras
>> in
>>> question have flaws in some areas, I will use the cameras accordingly,
>>> always the case for all of us.
>>> I used a CV 12 mm lens on my A7r, with many usable results, but some
>>> unacceptable results as well.
>>> That alerted me to be careful, especially with the widest of the wide.
>>> Extrapolating this to all lenses under 50mm is not a conclusion based on
>>> the facts. Some results of the widest lenses are acceptable, and we need
>> to
>>> have some reasonable ground rules. It occurred to me that we don't have
>>> rigorous comparative data, even for the M240. What is clear is that
>> many!!
>>> lenses on the A7r, give incredibly wonderful results, it would seem far
>>> greater in number for the A7r than the M240 because the list includes
>> most
>>> lenses ever made by most optical companies, including all of the leica R
>>> lenses.
>>> 
>>> Looked at in this light, I feel that the least we need to do, is approach
>>> this question with complete  understanding of the situation, an open
>> mind,
>>> and armed with some real world comparative data.
>>> 
>>> By the way, the above subject line says OT, but in my estimation this
>>> subject is very much on topic.
>>> 
>>> thanks for bringing it up,
>>> 
>>> Steve
>>> 
>>> 
>>> 
>>>> --Jim
>>>> 
>>>> 
>>>> 
>>>>> On Feb 20, 2014, at 5:10 PM, Steve Barbour <steve.barbour at gmail.com>
>>>> wrote:
>>>> 
>>>>> 
>>>>> 
>>>>> Sent from my iPhone
>>>>> Steve Barbour
>>>>> 
>>>>> On Feb 20, 2014, at 4:39 PM, Jim Gmail <jplaurel at gmail.com> wrote:
>>>>> 
>>>>> Aren't there a lot if reported issues with adapted lenses? The Leica M
>>> primes, at least, seem to perform much better on the M240 than on the A7.
>>>>> 
>>>>> where is this proven?
>>>> 
>>>> 
>>>> _______________________________________________
>>>> 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



In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] OT - Sony Alpha 7R)
Message from jplaurel at gmail.com (Jim Laurel (gmail)) ([Leica] OT - Sony Alpha 7R)
Message from sonc.hegr at gmail.com (Sonny Carter) ([Leica] OT - Sony Alpha 7R)
Message from jplaurel at gmail.com (Jim Gmail) ([Leica] OT - Sony Alpha 7R)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] OT - Sony Alpha 7R)
Message from jplaurel at gmail.com (Jim Laurel (gmail)) ([Leica] OT - Sony Alpha 7R)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] OT - Sony Alpha 7R)
Message from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] OT - Sony Alpha 7R)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] OT - Sony Alpha 7R)
Message from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] OT - Sony Alpha 7R)