Archived posting to the Leica Users Group, 1998/04/12

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

Subject: Re: [Leica] 3-Cam vs. ROM
From: budcook@ibm.net
Date: Sun, 12 Apr 1998 21:36:17 -0500

Sorry Jeff,
I had another Senior moment, I meant Jeff not Jim.  .
Bud
- -----Original Message-----
From: budcook@ibm.net <budcook@ibm.net>
To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Date: Sunday, April 12, 1998 9:26 PM
Subject: Re: [Leica] 3-Cam vs. ROM

Right you are Jim.  I just had a *Senior* moment:-)
Bud
- -----Original Message-----
From: Jeff Alford <alford@batnet.com>
To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Date: Sunday, April 12, 1998 8:55 PM
Subject: Re: [Leica] 3-Cam vs. ROM


>Bud,
>
>I don't think that the ROM feature is a cost cutting mechanism. Before R=
OM,
>most lenses were 3rd cam only, not 3 cam (you only need the 3rd cam for =
R
>cameras).
>
>Jeff Alford
>
>budcook@ibm.net wrote:
>
>> Pascal,
>> Thanks for the information.  I wouldn't doubt but that Leica's motivat=
ion
is
>> the same as with the molded aspheric lenses....cost reduction.
Eliminating
>> cams on future lenses would save a lot of money.
>> Bud
>> -----Original Message-----
>> From: Pascal <cyberdog@ibm.net>
>> To: Leica Users Group <leica-users@mejac.palo-alto.ca.us>
>> Date: Sunday, April 12, 1998 2:35 PM
>> Subject: Re: [Leica] 3-Cam vs. ROM
>>
>> On 08-04-1998 16:08 Bud Cook wrote:
>>
>> >All my lenses are 3-cam lenses.  Would these lenses work on the R8?
What
>> >functions of the R8 are lost without having a lens with built-in ROM?
>> >
>> >Do ROM lenses also have the 3-cams necessary for earlier R bodies?
>> >
>> Bud,
>>
>> Sorry for the late answer. Here it goes.
>>
>> Brian Bower in his book "Leica reflex photography" (new edition 1997)
>> says that at this stage the contact strip provides information for
>> dedicated flashguns and also to enable more precise stopping down of
>> lenses when the camera is in automatic shutter speed priority or progr=
am
>> operating modes.
>> The manual of my R8 confirms this (on page 7 of the Dutch language
>> version): "Not only a mechanical but also an electronic exposure contr=
ol
>> takes place when using lenses with contact strip, and certain lens dat=
a
>> such as the lens' focal length, are passed on to the camera."
>>
>> The contact strips provide for an additional (electronic) control, e.g.
>> compensation for light fall-of in the corners.
>> The thing is, the actual use and potential future of the contact strip
>> remains somewhat in the dark. Even Leica Solms will apparently not
>> comment much on the matter. Is there another version of the R8 in the
>> offing (with electronic focussing aids for which the contact strip is =
of
>> course essential), or even the R9 (autofocus =E0 la Contax AX)? Only f=
uture
>> will tell us.
>>
>> Pascal
>>
>> --------------------------------------------------------
>> t h i n k   d i f f e r e n t               a p p l e    c o m p u t e=
 r
>> --------------------------------------------------------
>> <<< PGP public key available on request >>>
>
>
>
>