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: Jim Brick <jim@brick.org>
Date: Sun, 12 Apr 1998 19:59:19 -0700

I knew it would happen someday. You are now reading my mind. I don't have
to type and click send any more.

:-)

Jim


At 09:20 PM 4/12/98 -0500, Bud wrote:
>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=
 ROM,
>>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=
 motivation
>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 program
>>> 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 control
>>> takes place when using lenses with contact strip, and certain lens data
>>> 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=
 future
>>> 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 >>>
>>
>>
>>
>>
>=20