[LRflex] Re: Leicanon exposure problems, now Digilux3
- From: "Bille Xavier F." <hot_billexf@xxxxxxxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Mon, 30 Jul 2007 20:43:36 +0200
May I add my 0.02 Camembert here?
The Digilux is underexposing when it is stopped down.
In fact, it depends on the lens, when a summicron or summilux, the rear
element is big enough to let the camera operates till f8.
With a Tamron SP, F5.6 is the expected max
with a 24 Elmarit, it depends on the scene. but due to its small rear
element, f4 to f5.6 is the limit.
The Digi 3 underexpose "à mort" if the above rule of thumb is not followed.
Spot metering is working best when used with experience, Leica R7
behavior....
Until there is a way to return the aperture plus a master mind calculation,
nothing will work properly.
In fact, a small PIC microprocessor (even a NEC 4 bits, those you find in
the talking/singing aniversary cards could do) installed between the 4/3 and
the ROM is the solution.
Expensive? Bah, a mere 5 Euros for the Electronics + the salary of a soft
Man for 6 months (er, it's more complex, count in the cocroaches of the
quality dep't, the sales, the tools&methods, the comisionning, aftersale,
etc, etc).
FWIW!
---------------------------------
Xavier F. BILLE
Maisons-Alfort - France.
From: "Aram Langhans" <leica_r8@xxxxxxxxxxx>
Reply-To: leicareflex@xxxxxxxxxxxxx
To: leicareflex@xxxxxxxxxxxxx
Subject: [LRflex] Re: Leicanon exposure problems
Date: Sun, 29 Jul 2007 18:42:23 -0700
Aperture priority or manual mode. Either one, same results. I also went
back and used my old adaptor w/o focus confirmation and the results were
the same. Just did another test using flash. The flash exposures were all
very consistant until I stopped down too much for the flash to provide
enough light. They then got dark. My problem without the flash is
overexposure as I stop down. The meter in either aperture priority or
manual is overcompensating for the stopped down lens and the more I stop it
down the more it overcompensates with the shutter speed.
I am ready to return the camera. Does anyone know if the Olympus 4/3
cameras have this problem? Is there an focus confirmation for the Olympus
camera yet? I don't see one advertised.
From: David Young <telyt@xxxxxxxxx>
Reply-To: leicareflex@xxxxxxxxxxxxx
To: leicareflex@xxxxxxxxxxxxx
Subject: [LRflex] Re: Leicanon exposure problems
Date: Sun, 29 Jul 2007 09:16:30 -0700
At 29/07/2007, you wrote:
I finally got a focus confirmation adaptor and an eyepiece magnifier for
my Rebel XTi and have been quite disappointed with its exposure
performance using Leica R lenses. I just conducted a more scientific
test and this is what I found. Using the 35-70/4 zoom, it meters dead on
with the lens at f4. If I stop down to f-5.6 if is 1/2 stop over
exposed. If I stop down to f-8 it is 1 stop over exposed. This is
consistent with what I found out yesterday using the 50 when I was
noticing some of my shots were over exposed and other were dead on. I am
using either manual mode or aperture priority metering mode. Both do the
same thing, obviously, since AE mode is just duplicating what the meter
says in manual mode.
I don't remember this problem when I would use the school's original
Rebel.
Has anyone seen this? Is there a solution? (yeah, DMR or wait for R10).
Aram
Good Sunday Mornin', to you, Aram!
Hmmmm... I'm using the FC adapters with a 30D and find the exposures quite
consistent. I use Aperture Priority mode only ... which (along with
manual) are the only modes known to work with the adapters. Are you using
AP or AE (Auto Exposure) mode?
Cheers!
---
David Young,
Logan Lake, CANADA
Wildlife Photographs: http://www.telyt.com/
Personal Web-pages: http://www3.telus.net/~telyt
Stock Photography at: http://tinyurl.com/2amll4
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