[Leica] Re: R8 and older lens

[Jim Brick <jim_brick@agilent.com>]

I too have used my 60mm macro on my friends R8 without problems.

I believe that what Leica is referring to when they say possible camera
damage is that on some lenses, it is possible for the back of the lens to
rub the ROM contacts in the camera and over a period of mounting and
dismounting, finally damage the camera ROM contacts. A ROMmed lens has a
slightly difference base plate. Slightly lower metal surface with the ROM
contacts slightly raised so when a ROM lens is mounted, the lens ROM
contacts are the only part that rub and connect with the camera ROM
contacts. I believe that on the majority of non ROM lenses, there is no
contact and therefore no possibility of damage over the long run. One
might, however, occasionally check the camera ROM contacts to insure that
they are not being inadvertently damaged.

Jim


At 03:06 PM 4/4/01 -0700, Ted Grant wrote:
>> le 04.04.2001 16:07, Jim Hemenway à jim@hemenway.com a écrit :
>>
>> > The R8 instruction
>> > booklet stated something to the effect that my 60mm needs to be ROMed,
>> > otherwise it can/will damage the camera.<<<<<<
>
>Hi Jim,
>
>That's nice to know, as I've used my beat up 60 macro bought in Munich
>during the 1972 Summer Olympics and nothing has happened to either of my
>R8's. And I've used it with the macro adapter and a few times with an extra
>macro adapter and the 2X extender all at the same time..... all non-rom! :-)
>
>But then the ROM contacts really don't mean a hill of beans unless you're
>using a zoom flash and or are so picky that you might get an infinitesimal
>aperture adjustment for an exposure without flash.
>
>All my R lenses are non-rom and they work perfectly well under all
>conditions, so if one has the option of buying cheaper price non-rom glass,
>I recommend it highly.
>
>At the moment to spend major dollars for rom contacts is doing nothing more
>than spending your money for cosmetic fluff!  And throwing your money away
>on a sales pitch of meaningless nothing!
>ted
>
>Ted Grant Photography Limited
>www.islandnet.com/~tedgrant