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Re: Sv: [OM] OM=Japanese Leica???

Subject: Re: Sv: [OM] OM=Japanese Leica???
From: Skip Williams <skipwilliams@xxxxxxxxx>
Date: Wed, 09 Feb 2000 09:21:38 -0500
Bullshit! This sounds like a lot of marketing double-talk. I for one don't believe it. Why would Nikon release their D1 with a standard Nikon AF mount? Why would Kodak make their $20-30,000 digital cameras using Fxx and EOS bodies that use standard Nikon and Canon lenses?

OK, I plead ignorance, and I'm on a EE or Optical Engineer, I'm just a lowly college-educated bum, but....

I honestly don't understand the statements that quality is acceptable for film, but not for Digital. The digital CCD's are like groups of little pieces of film (or buckets), what difference does it make whether or not the light rays are parallel or convergent? Moden lens design has concentrated on minimizing aberrations across a flat film plane. Forgive me, but isn't a CCD flat??!! If modern lenses can focus onto ultra-fine films like K25, 2415, etc and get outstanding results, why not CCD's at several times the resolution (worse, not better)?

I for one am going to post this over on the Leica list and get some reactions from them for some more fuel.

Skip


At 2/8/00 09:20 PM  -0700, you wrote:

I spoke with several folks from Olympus America at PMA this past week.  In
general they had this to say:---Some OM items are still in production and will
continue to be so for the foreseeable future; NO digital  camera using OM
lenses is planned (more on this later); they are developing what they feel are
the best P&S  35mm and consumer digital cameras.

The stated reason about NO OM Digital Camera is:  they feel the quality to be
obtained from using interchangeable lenses NOT designed for digital is greatly
inferior. It has to do with how a CCD accepts light input, light rays must ALL be parallel since the sensor is like little buckets ( U ). Nikon and Canon get around this by using an adapter plate to make the rays acceptable but sharpness
suffers at the edges, especially with larger chips.
Also, interchangeable lenses have some play in the mount, and while some of
this in acceptable and within tolerance for film, it is not for CCD's.


-----------------------------------------------
Skip Williams
Westfield, NJ
skipwilliams@xxxxxxxxx
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