OK, Here I go.... This is not directed at Dave, but at Olympus.
Here is the response from the Olympus tech off the same list.
------------------------------------------------------
>RE: OM system vs E-series
>John Knaur (OAI) - 21 Nov - 08:52:10 PM
>Actually the E-10 lens has to be 3-4 times sharper than the OM Lens just
to be the same. A 35mm lens has to resolve to the equivalent of 10 microns
for film, the E-10 lens has to resolve to less than 4 microns. The C-2500L
is not the E-10, which has an Olympus lens (same group as the Zuiko came
from) and a totally differen design philosophy. The metering is very good
(not multispot but is is OTF(CCD) and also has a multi-pattern meter and
center-weighted meter. Check out some of the images at camediagallery.com
------------------------------------------------------
MY COMMENTS (while standing on my soap box):
He is full of S**T if he thinks any consumer lens is 3-4x sharper than the
35-80/2.8, certainly one of the best medium-range zooms ever made for
35mm. I'm no optical engineer, but the resolution of a lens isn't
theoretically dependent on it's targeted format, but on its
design. Certainly a larger format presents more problems than a smaller
one. But the size of the targets for 35mm and a 4mgPixel CCD aren't that
much different. Also "sharpness" isn't the only measure of a lens'
performance. I see that he mentions 4 vs 10 microns; where the H**L does
he assume that 10 microns is "good enough" for 35mm? Lenses have been and
are developed as good as is economically feasible for the time. Look at
Leica, certainly at the top of the heap these days in 35mm lens, but at
WHAT A PRICE! And the Leica lenses are NOT 3-4 times sharper than ANY Zuiko.
Whew....OK now I've thrown down the gauntlet. Will someone with more
technical knowledge pick it up and show me where I'm wrong? This sounds
like the same type of LAME argument we got from Olympus last year when they
said the Camedia lenses were better than the OM-system lenses for CCD's
because the delivered light rays "more parallel". And that's why the
OM-system lenses would NEVER WORK for digital. WHAT A LOAD OF CRAP! Tell
Canon, Fuji, Contax, and Nikon THAT. I guess that those manufacturers are
all full of it because they offer digital bodies that can use supposedly
inferior 35mm lenses?
Skip
At 09:06 AM 11/22/00 +0100, you wrote:
Hi Zuikholics,
I must say that I´m very impressed with E-10 lens.
I gonna show you one reply from Olympus, according to OM
system and Zuiko line compared to new E-series.
If someboby wants to go to this forum, here is the link!
I´ve also attached my letter and Olympus reply, here in this
e-mail.
http://www.olympus-innovation.com/Forums/msgboardframeset.html
Best regards,
Dave
pd: OLYMPUS FOREVER!!!
--------------------------------------------------------------
Unofficial Olympus web page
http://victorian.fortunecity.com/byzantium/656/index.html
--------------------------------------------------------------
OM system vs E-series
David Irisarri - 21 Nov - 10:51:10 AM
I´d like to know if this new Olympus E-series
can be compared in terms of quality to Olympus
Zuiko lenses. For instance: Does CAMEDIA E-10
ED zoom can be compared to Zuiko 35-80 f2.8 in
sharpness and contrast?
I love working with my OM4T, is the perfect
tool for zone system, center-weighted is very
accurate and 2pot metering is really amazing!
I hope with 1.2 0.000000ound in E-10 you´ll be able to
do previsualization even better! But light
metering can be compared to OM4T´s OTF? I have
one C-2500L and I can´t say good things
about it! I love Olympus phylosophy, but this
camera has a terribly bad light metering system,
very poor quality wide open, only two apertures,
CCD noise ultra high! Don´t try usign ISO 200.
I´d like to know if I could work with the same
precision of my OM4T?
I can´t help stop thinking about why Olympus
don´t develop a new OM digital series. Digital
OTF, multispot metering, modify EV values into
one scene controling CCD sensibility (no more
filters needed). Why spend so money in aspherical
aberrations if you can eliminate them by software
bearing in mind Olympus optical design? What
about grin-glass?
Dave
----------------------------------------------------------------------------------------------
Actually teh E-10 lens has to be 3-4 times sharper than the OM Lens
just to be the same. A 35mm lens has to resolve to the equivalent of 10
microns for film, the E-10 lens has to resolve to less than 4 microns.
The C-2500L is not the E-10, which has an Olympus lens (same group
as the Zuiko came from) and a totally differen design philosophy. The
metering is very good (not multispot but is is OTF(CCD) and also has a
multi-pattern meter and center-weighted meter. Check out some of the
images at camediagallery.com
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|