[LRflex] Re: adapter question...
- From: David Young <dsy@xxxxxxxxxxxxxxx>
- To: LRF reflex <leicareflex@xxxxxxxxxxxxx>
- Date: Sun, 23 Aug 2009 13:23:22 -0700
Steve Barbour wrote:
Can one use a Leica R to Oly E3 adapter with the focus confirmation
chip, with Leica R ROM lenses...?
I have the impression that the ROM lens contacts are not compatible
with the fc chip on the adapter ring...
is this right ? What's the scoop?
Hi Steve!
I believe so. The ROM contacts should have the same effect as they
do when mounted on an R-3 ... .
The contacts in an AF confirm adapter are not electrically connected,
in any way, to the lens. The adapter simply tell the Oly or Canon
that an Oly or Canon lens is attached and the max aperture. A few
of them can be programmed to change the max aperture to match the
lens you're actually using.
They don't know what the actual lens is, or what it's set at. Nor is
any effort made to connect with the ROM contacts. Their only
purpose is to trick the camera, so that AF confirm circuits, within
the body, work.
All my Leica lenses are 3-cam, so I cannot prove this ... but this is
my understanding. Someone can correct me if I've got it wrong.
Cheers!
---
David Young
Logan Lake, BC
Wildlife Photos: www.furnfeather.net
Rodeo Photos: www.galleries.furnfeather.net
Personal Website: www.main.furnfeather.net
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