Archived posting to the Leica Users Group, 2009/12/19

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] M9 Internal IR-Cut filter make the camera fragile to use?
From: Frank.Dernie at btinternet.com (Frank Dernie)
Date: Sun, 20 Dec 2009 07:53:26 +0000
References: <3751BA58-50B2-426A-ADA8-14407A2A47C0@gmail.com> <C752759B.5A9BB%mark@rabinergroup.com> <013c01ca80d0$c8960bf0$59c223d0$@net> <200912191758.CCK44633@rg4.comporium.net> <014e01ca80f0$5e3776c0$1aa66440$@net> <1BE8CDEE-757B-47A9-AF6E-7D6BFD1D803D@gmail.com>

Hi Steve, looking at the lenses the 15 is a much simpler design than the 12 
so it is probably more symmetrical and has as a result its exit pupil nearer 
the sensor. The 12 looks a more complex design, more retrofocus. On the 
Epson RD1 the 15 vignetted more than the 12, though Epson supplied 
correction software for all the CV lenses as a standalone and a PS plugin. 
Perhaps CV should offer the same to their customers with Leicas...
I have not used the 15 recently. I bought a wide angle tri-elmar to go with 
the M8, so I use that instead.
Henning is the expert, perhaps he will step in and help us out.
Frank

On 19 Dec, 2009, at 21:26, Steve Barbour wrote:

> 
> On Dec 19, 2009, at 1:15 PM, Frank Filippone wrote:
> 
>> Thanks Tina.. the SA is a much deeper lens than the Elmarits, and that is
>> the issue we are dealing with.....the depth of the lens into the body
>> affects the obliqueness of the light rays....the SA is about as deep as it
>> gets ( and therefore probably the most at risk for issues)
>> 
>> People seem to be happy with the Cosina 12.. it is the 15 that there is
>> apparently some issue with....
> 
> 
> Frank, do you know what is the issue with the CV 15 ?
> 
> thanks, Steve
> 
>> 
>> Frank Filippone
>> red735i at earthlink.net
>> 
>>> The answer to the 21 SA on the M9 would be interesting... anyone have a
>> lens
>>> and a M9 to try it out?
>>> 
>>> 
>>> Frank Filippone
>> 
>> I have the M9 but my 21 is the Elmarit 21/2.8.  Would that do?  I 
>> also have the Voigtlander 12mm that I've used on my M8s and M9 with 
>> no problems.  I'll see if I can find some samples.  The 12mm is in 
>> the city and I'm at the farm today.  I have the M9 and 21 here.
>> 
>> Tina
>> 
>> _______________________________________________
>> 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 steve.barbour at gmail.com (Steve Barbour) ([Leica] M9 Internal IR-Cut filter ...)
In reply to: Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] M9 Internal IR-Cut filter make the camera fragile to use?)
Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] M9 Internal IR-Cut filter make the camera fragile to use?)
Message from red735i at earthlink.net (Frank Filippone) ([Leica] M9 Internal IR-Cut filter make the camera fragile to use?)
Message from images at comporium.net (Tina Manley) ([Leica] M9 Internal IR-Cut filter make the camera fragile to use?)
Message from red735i at earthlink.net (Frank Filippone) ([Leica] M9 Internal IR-Cut filter make the camera fragile to use?)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] M9 Internal IR-Cut filter make the camera fragile to use?)