Interesting question, I doubt anyone has serious compare them both together
but you may check Gary's lens test here (not for infinity objects either):
http://zone-10.com/cmsm/index.php?option=com_content&task=section&id=10&Itemid=97
I have sold the 135/3.5 long ago, same for the 200/5 (more likely a F5.6
actually), they are just too slow for me and didn't look to be very special
either. It was before I have digital back so I haven't make any test.
On the other hand I can provide some test samples of 90/2 at F4, 100/2 at F4
and 135/2.8 at F5.6 below. Sorry no F8, as I seldom use F8 and below. Since
there are difference in focal lengths so no direct comparison possible. All
tests were made with E-3, focus with liveview, tripod, shutter delay for
vibration reduction, sharpness -2:
http://www.accura.com.hk/temp/90mmF4.jpg
http://www.accura.com.hk/temp/100mmF4.jpg
http://www.accura.com.hk/temp/135mmF56.jpg
I would say 90/2 is even better than 100/2 for distance objects.
C.H.Ling
----- Original Message -----
From: "Dawid Loubser"
> Hello all,
>
> I have not had the opportunity to do my own comparison yet (I know, I
> know...
> but my enlarger is still broken) and I was wondering, apart from the
> obvious
> rather significant difference in focal length, at f/8 and infinity,
> what would
> you gentlemen (and ladies) perceive to be the better performing lens?
> I am talking
> mostly about resolution, perhaps flare-resistance, and to a lesser
> degree contrast
> (I do chemical B&W, so I can correct contrast easily enough).
>
> Can the 90/2.0 floating system really enable perfect correction at
> infinity (a long
> way from the 1/10 life size optimum)?
>
> I need no convincing of the 90/2.0 lens' astounding (really: not
> "amazing",
> not "freakin amazing", but just downright impossibly good) performance
> at
> closer distances, but at f/8 @ infinity, compared to the 135/3.5...
>
> What doth thou say?
>
--
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