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Re: [OM] E-1 lenses resolution vs. conventional lenses - fact or hype?

Subject: Re: [OM] E-1 lenses resolution vs. conventional lenses - fact or hype?
From: "B. D. Colen" <bdcolen@xxxxxxxxxxxxx>
Date: Fri, 10 Oct 2003 12:52:48 -0400
How about anyone who didn't want to have to shoot all the time in manual
stop-down mode? ;-)I'd suggest that the adapter would be a way to get
Zuikoholics into the tent, and once there, most people would eventually
buy one or more of the E-1 lenses.

-----Original Message-----
From: owner-olympus@xxxxxxxxxxxxxxx
[mailto:owner-olympus@xxxxxxxxxxxxxxx] On Behalf Of MiamiDolphins1
Sent: Friday, October 10, 2003 8:40 AM
To: olympus@xxxxxxxxxxxxxxx
Subject: Re: [OM] E-1 lenses resolution vs. conventional lenses - fact
or hype?


Think of it this way, if they made an adapter, how many serious OM
shooters would buy the E-1 lenses, if they could easily mount an OM lens
onto an E-1 camera?


Sam...


----- Original Message -----
From: "Joe Gwinn" <joegwinn@xxxxxxxxxxx>
To: <olympus-digest@xxxxxxxxxxxxxxx>
Sent: Friday, October 10, 2003 7:32 AM
Subject: Re: [OM] E-1 lenses resolution vs. conventional lenses - fact
or hype?


> At 3:20 AM +0000 10/10/03, olympus-digest wrote:
> >Date: Thu, 9 Oct 2003 18:19:49 -1000
> >From: "Danrich" <danrich@xxxxxxxxxxxxx>
> >Subject: Re: [OM] E-1 lenses resolution vs. conventional lenses - 
> >fact or
hype?
> >
> >Because more resolution to the digital world (CMOS/CCD) is what is 
> >needed according to the comparison to old world principles of the 
> >mastery and marriage of film and a well made lens. XDan
> >
> >Olympus is claiming their new E-1 lenses have greater resolution and 
> >this is a necessity for their new system, as well as one of their 
> >reasons for not offering the OM adapter.  I am skeptical about this. 
> >Why are they all of a sudden able to produce lenses of supposedly 
> >superior resolution?  What new technology in glass or lens design has

> >enabled this?  Why have no other manufacturers come up with it?  For 
> >years, the various manufacturers have been in hot competition to win 
> >the best lens resolution test scores, and the Zuikos were always at 
> >least in the top tier of lenses.  If there was a way to make a lens 
> >with higher resolution, why didn't all the manufacturers jump on it?
>
> It's a tradeoff.  What those manufacturers meant was that they 
> produced
the best resolution (for the price).  Far better lenses are possible,
but not at a price (or weight) suited to photography.
>
> As for the E-1, we do know something about the 5-mpixel CCD that will 
> be
used, the Kodak KAF-5101CE -- its pixels are square, 6.8 microns on a
side. This is comparable to the resolution of silver-based film of
reasonable sensitivity.
>
> So, there is no point in making the E-1 lenses a lot sharper than for
film.  In fact, lens resolution exceeding 6.8 microns will only cause
aliasing.
>
> What is different is that the KAF-5101CE CCD has a microlens on each
pixel, limiting the allowed angle of incidence of light onto the CCD
surface to something like +/- 5 or 10 degrees from perpendicular.  How
wide an angular range is acceptable depends on how much light falloff in
the corners is acceptable.  Anyway, film has essentially no angle
restriction, so lenses with short focal lengths can be a problem with
such CCDs, in that the corners may be darker than with film, and Olympus
may not wish to attempt to explain the reason the the mass market.
>
> Even if the marketing types are unclear on the technical rationale and
emit spurious arguments, I don't really think that Olympus Corp is
trying to force OM lens owners to repurchase everything, even if that is
the effect. Simply put, there are not enough of us Zuiks to matter in a
photo market where the least significant digit is 100,000 cameras sold,
and the internal debate at Olympus on production of an OM-E1 adapter
probably turns on the likely profitability of such an adapter were it
offered, and not on any possible effect on the larger market for the E1.
>
> Joe Gwinn
>
>
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>


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