Hi David,
If you look at the 14-45 distortion at 14mm
http://www.photozone.de/8Reviews/lenses/olympus_1445_3556/index.htm
compare to the dpreview test
The result is probably cropped from somewhere near the border, which, of
course, 50mm f2 is the winner.
Just a thought.
Thank you,
Supat
>From: "David Irisarri" <div2000@xxxxxxxxxxxxxxxxx>
>Reply-To: olympus@xxxxxxxxxx
>To: <olympus@xxxxxxxxxx>
>Subject: [OM] Re: ZD 50mm f/2
>Date: Wed, 18 Oct 2006 18:28:41 +0200
>
>
>Are you sure????
>
>Please have a look to this ;-)
>
>http://www.popphoto.com/cameralenses/2422/lens-test-olympus-zuiko-digital-50mm-f2-af-macro-specifications-page2.html
>
>CONCLUSION: A medium telephoto macro lens in the mold of the famous
>film-era
>90mm f/2 Zuiko macro-which it resembles optically and in price-this lens
>performs extremely strongly. It's well-suited to low-light work,
>portraiture, and, of course, close-ups. Plus, it's the lightest f/2 true
>macro we've ever seen.
>
>Gary Reese´s tests, in spite of being an outstanding and superb work,
>never
>were made using any MTF or analytical instruments for measuring resolution
>and contrast.
>
>DPREVIEW ANALYTICAL RESULTS!!!
>
>http://www.dpreview.com/reviews/olympuse300/page19.asp
>Olympus ED 14 - 54 mm F2.8 - F3.5 (28 - 108 mm equiv.)
>The ED 14 - 54 mm is the E-1's "Kit Lens" and is basically twice the price
>of the EZ 14 - 45, and to be honest while it's a faster lens it doesn't
>really produce very much in the way of sharpness. Obviously it's going to
>have other improved attributes (distortion, contrast, flare etc.) but this
>comparison does help to demonstrate how good the 14 - 45 is.
>
>Olympus ED 50 mm F2.0 Macro
>The optimum 'test lens', a sharp fast prime lens the 50 mm F2.0 Macro was
>an
>obvious choice for us when comparing Four Thirds digital cameras to other
>D-SLR's. As you can see from the results below it's amazingly sharp even
>wide open (F2.0) and maintains fairly good resolution through to F14. We
>found it's optimum sharpness to be around F5.6 / F6.3.
>
>NOW PHOTOZONE!!!
>
>http://www.photozone.de/8Reviews/lenses/olympus_50_2/index.htm
>
>The Olympus Zuiko Digital 50mm f/2 macro may be the only macro lens
>available for four-thirds at the moment but its performance is near
>flawless. Optically the lens is basically beyond criticism with a peak
>performance that betters the 8 mega pixel sensor of the E-300. Mechanically
>it suffers a little from the conventional AF motor as well the focus
>extension system although the principal quality of the construction is very
>high. Highly recommended!
>
>Something very important to take into account is that old lenses were
>analysed using 10 lines/mm and 30 lines/mm but never 20 lines/mm for
>contrast and 60 lines/mm for resolution. IMHO there is no way comparing OM
>lenses to new ZD lenses. Let´s see how OM lenses perform with 10-15 Mpixel
>E-X cameras.
>
>Kind reagards,
>
>
>
>Dave
>
>
>
>
>
>----- Original Message -----
>From: "Komtanoo Pinpimai" <romerun@xxxxxxxxx>
>To: <olympus@xxxxxxxxxx>
>Sent: Wednesday, October 18, 2006 5:35 PM
>Subject: [OM] Re: ZD 50mm f/2
>
>
> >
> > I've been wondering the same thing. In the good old days, olympus
>released
> > the manual version of 50mm F2 macro, this lens has so good reputation in
> > sharpness that Gary used as his reference of A+ in his OM lens test
>page.
> > It
> > would make sense if the new version has better performance, but the
>graphs
> > show the other way.
> >
> > -kem
> >
> > On 10/18/06, Supat S. <eancho@xxxxxxxxxxx> wrote:
> >>
> >>
> >> Hi list,
> >>
> >> sources:
> >>
> >> zd 50 spec
> >> http://www.olympus-esystem.com/dea/products/lens/50_20M/index.html
> >> http://www.photozone.de/8Reviews/lenses/olympus_50_2/index.htm
> >>
> >> zd 14-54 spec
> >> http://www.olympus-esystem.com/dea/products/lens/14-54_28-35/index.html
> >> http://www.photozone.de/8Reviews/lenses/olympus_1454_2835/index.htm
> >>
> >> leica 14-50 spec
> >> http://panasonic.co.jp/pavc/global/lumix/leica_d_lens/zoom_lens.html
> >>
> >> leica 14-50mm vs zd 50mm
> >>
>http://forums.dpreview.com/forums/readflat.asp?forum=1022&thread=20271951
> >>
> >> questions:
> >>
> >> 1) I have E1 + 14-54, I want to get sharper images, does the 50mm f/2
> >> will
> >> give me that? Considering the graph, if I understand correct MTF chart
> >> shows
> >> the sharpness and resolution.
> >>
> >> 2) From lens structures, 50mm is different, does 50mm sacrifice the
>peak
> >> sharpness (center) (MTF 20 - the graph is always lower that 90%, unlike
> >> 14-54 and 14-50) to get the consistency edge to edge level of
>sharpness?
> >>
> >> 3) For portrait, if I shoot 3 lenses at 50mm, put the model face at the
> >> center. Is it true that the detail and sharpness of the model face
> >> produced
> >> by 14-54 and 14-50 are better than 50mm f2?
> >>
> >> 4) Am I wrong?
> >>
> >> Thank you,
> >> Supat
> >>
> >> _________________________________________________________________
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