Archived posting to the Leica Users Group, 2007/08/26

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Subject: [Leica] Noctilux M8 - Internal reflections or sensor problem? IMG
From: faneuil at gmail.com (Eric Korenman)
Date: Sun Aug 26 06:33:31 2007
References: <82c9dd70708260440l6d2b826at7a4720f09e39f923@mail.gmail.com> <006101c7e7e4$811204f0$9600000a@dell810>

thanks for the opinion.
The shots with IR filter freaked me out at first - they look so sharp and
like 'sensor ghosts'.
The shots without the IR filter convinced me that it was not a sensor issue.

Eric

On 8/26/07, Fred Hess / Phenix Visuals NL <fredhess@phenix-visuals.nl>
wrote:
>
> Hello Eric,
>
> Those reflections seem to me as internal reflections in the Nocti itself.
>
> Often you see this kind of reflections in 16- or 35mm film lenses too.
> Even with Zeiss Primes for Arriflex-camera's!!
>
> So, no sensor-based 'problem' to my opinion.
>
> Kind regards Fred Hess.
>
> ----- Original Message -----
> From: "Eric Korenman" <faneuil@gmail.com>
> To: "LUG" <lug@leica-users.org>
> Sent: Sunday, August 26, 2007 1:40 PM
> Subject: [Leica] Noctilux M8 - Internal reflections or sensor problem? IMG
>
>
> > These test shots reproduce a problem I had while shooting Noctilux and
> M8
> at
> > night by light of tiki torches.
> >
> > I set up candles in my kitchen and shot 2 images.
> > First is with an IR filter.
> > Second is without.
> > Noctilux is wide open for both shots.
> >  www.korenman.com/candles
> >
> > Note how the repeated images in the lower right change.
> > I think this is all internal reflection issues and not a sensor problem.
> > Leica claims that green images with the IR filter are due to internal
> > reflections between the lens and filter.
> >
> > Anybody had a similar experience?
> >
> > Eric
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>

Replies: Reply from faneuil at gmail.com (Eric Korenman) ([Leica] Noctilux M8 - Internal reflections or sensor problem? IMG)
In reply to: Message from faneuil at gmail.com (Eric Korenman) ([Leica] Noctilux M8 - Internal reflections or sensor problem? IMG)
Message from fredhess at phenix-visuals.nl (Fred Hess / Phenix Visuals NL) ([Leica] Noctilux M8 - Internal reflections or sensor problem? IMG)