Well , let me correct that.The Zuik performs better stopped down and the
Nikkor, open. They both seem star performers at f/8. But the previous
question still stands , why compare the Olympus to the Leica and not the
Nikkor ?
( In case you are wondering, my loyalty is still the Zuiko.)
-Tim
----- Original Message -----
From: "Tim Chakravorty" <suchismit@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, November 17, 2002 2:11 PM
Subject: Re: [OM] 50mm f2 vs 3.5
> Looks like the 55/2.8 AIS performs uniformly well upto f/11 according to
> the test, while the Zuik 50/2 does not .
>
> If the 55/2.8 is a 'better' lens why then is the Zuik always compared to the
> 50 'cron and not the micro Nikkor ?
>
> -Tim
>
>
> ----- Original Message -----
> From: "tOM Trottier" <Tom@xxxxxxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Sent: Sunday, November 17, 2002 11:39 AM
> Subject: Re: [OM] 50mm f2 vs 3.5
>
>
> > (from http://members.aol.com/olympusom/lenstests/default.htm )
> >
> > Nikon Micro-Nikkor 55mm f/2.8 AIS (multicoated)
> > Nikon F2 with mirror and diaphragm prefire
> > Distortion: slight waveform with no tendencies
> > Vignetting: A- @ f/2.8, A thereafter
> > Aperture Center Corner
> > f/2.8 A- B+
> > f/4 A A-
> > f/5.6 A A-
> > f/8 A+ A+
> > f/11 A A-
> > f/16 B+ A-
> > f/22 B B
> > f/32 B- B-
> > Notes: High contrast at f/2.8 and f/16; very high contrast at f/8 and
> > f/11; extremely high contrast at f/5.6; moderately high contrast
> > (diffraction limited) at f/22 and f/32. Remarkable image detail at
> > f/8 - the optimal aperture.
> >
> >
> > 50mm f/2.0 Zuiko Macro (multi-coated)
> > OM-1 with mirror lockup
> > Vignetting = B
> > Distortion = none
> > Aperture Center Corner
> > f/2 C C
> > f/2.8 C B-
> > f/4 B B
> > f/5.6 A A-
> > f/8 A+ A+
> > f/11 A A
> > f/16 A A-
> >
> > OM-2000 with mirror and aperture prefire, same lens as above
> > Aperture Center Corner
> > f/2 B- B-
> > f/2.8 B- B
> > f/4 A- A-
> > f/5.6 A- A
> > f/8 A+ A+
> > f/11 A A-
> > f/16 A- B+
> > Notes: Moderate contrast at f/2, f/2.8, f/4, f/5.6, f/16, moderately high
> > contrast at f/8 to f/11. Paired comparison to the Leitz 50mm f/2
> > Summicron-M in the Other Camera Manufacturer's Lenses section, with
> > differences significant at the 1/3 grade level.
> >
> >
> > 50mm f/3.5 Zuiko (multi-coated)
> > OM-1 with mirror lockup
> > Vignetting = B+
> > Distortion = none
> > Aperture Center Corner
> > f/3.5 C+ C-
> > f/5.6 A- B+
> > f/8 A- A-
> > f/11 A- A-
> > f/16 B+ B
> > f/22 B B-
> > Notes: Moderately high contrast image which softens beginning at f/11
> > and is distinctly softer at f/22, thus yielding best performance at
> > f/8; soft wide open; classic performance curve across aperture range.
> >
> > OM-4 with mirror and aperture prefire
> > Vignetting = A- @ f/3.5, A @ f/5.6
> > Distortion = very slight pincushion
> > Aperture Center Corner
> > f/3.5 B- C
> > f/5.6 A A
> > f/8 A+ A
> > f/11 A A
> > f/16 A- A-
> > f/22 B+ B+
> > Notes: Moderately high contrast, except high at f/8. Different lens
> > sample than the OM-1 test above.
> >
> > tOM
> > ...
> > ---- Quidquid latine dictum sit altum viditur ----
> > ,__@ tOM A. Trottier +1 613 860-6633 fax:231-
> > 6115
> > _-\_<, 758 Albert St.,Ottawa ON Canada
> > K1R 7V8
> > (*)/'(*) ICQ:57647974 N45.412 W75.714
> > "They that can give up essential liberty to obtain a
> > little temporary safety deserve neither liberty nor
> > safety." -- Benjamin Franklin
> >
> >
> > < 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 >
> >
>
>
> < 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 >
>
< 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 >
|