Archived posting to the Leica Users Group, 2003/09/02

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Subject: Re: [Leica] Re: Re: Digital back for Leica M, sequel, precision and so on
From: Grégoire Vandenschrick <gregoire.vds@skynet.be>
Date: Tue, 2 Sep 2003 22:01:38 +0200
References: <4f.339c4a1b.2c862177@aol.com>

Thank you for the proposal.

I currently have not enough technical details about microlens array, stuff
like refraction index of the polymer, curve radius or the microlens,
distance between microlens and photosite, added distance of the color bayer
filter and so on, but when I have these, sure, you could draw this.

ther is also the problem of the protective glass, and the correct situation
of the sensitive layer of the CCD in the film plane. This is a tough one.
and this one needs to understand and think about it thoroughly for the
system to work.

So, the idea is good, the thing, in my opinion, can work, without any doubt,
but there are lots of technical details I have to think about before even
draw something.

I WILL talk with Leica Solms about this, even is I already had the incidence
light answer, because I honestly think it is only an excuse. I explain: I
think Leica is NOT dead in the photographic field, surely not, for proof,
they currently devellop this digital back for Leica R. the R8 was a good
sign, the R9 is another. But, for the ones of you, like me, that waited for
the Motor Drive for the R8, this took too much time, and this is I think,
maybe a sign of rather weak design and engineering team (think also about
the contact problems between the body and the normal back (I used to put a
film, close the back, advance two or three views, then, no info on the rear
LCD, had to rewind the film, open, close, open close, then, suddenly, LCD
awakes, ok, let's go, rearm two three times, never ever had this with my old
Nikon F801-s, and I did not clean the contacts each time I opened it!) Leica
is the best for optical design, no contest on that, but when electronic is
involved, they are not the best outhere. So I think that Leica hesitate to
begin to devellop things out of their field (digital back for R is
devellopped in joint with Imacon, well known for their digital back for
medium format). So when it comes to devellop a new type of CCD (with shifted
microlens array), this is completely out of their capability, and this is
logic, Leica is a society living on a small niche (very expensive body and
lenses, so rather small amount of production, they have to be careful) and
cannot afford for two or three years of investment and research only to sell
too few pieces (what would be the market for a digital back for Leica M, I'm
rather confident if this is well done, with a very high build standard, a
high resolution, very fast and so on, THERE IS A MARKET, look at the
discussions now!).

others thoughts, again

Best

Greg

- ----- Original Message ----- 
From: <Afterswift@aol.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Tuesday, September 02, 2003 6:38 PM
Subject: Re: [Leica] Re: Re: Digital back for Leica M, sequel, precision and
so on


> In a message dated 9/2/03 3:21:59 AM Pacific Daylight Time,
> gregoire.vds@skynet.be writes:
>
> > I accept everything, and I understand it is maybe useless to talk about
this
> >  to the Lug. I talked about this to leica, and I had some first reaction
> like
> >  "Leica really wants to devellop this, but the tech currently is not
able,
> >  the M system is not dead, Leica doesn't see any film supply problem in
the
> >  future". Then I gave Leica my idea of the displaced microlens, and have
no
> >  answer yet, it can come or not, I don't know.
> --------------
> Grégoire,
>
> I would certainly make mechanical drawings of your idea and copyright
them.
> Then you would receive a better hearing.
>
> br
> --
> To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html
>


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In reply to: Message from Afterswift@aol.com (Re: [Leica] Re: Re: Digital back for Leica M, sequel, precision and so on)