Actually there was a lots of post in the pass talking about the chromatic
aberration of Zuiko 180/2.8. It sure has some, most visible in the high
light area. If your shot does not contain bright spot there will be no
problem. I remember one list member mentioned he use the 180/2.8 to shoot
snow mountain. The edges of the mountains are filled with blue casts. I also
found one of my shot with bright water reflection, in which the blue halo is
quite visible. I had also posted to the list for comment last year. Stop
down the the lens does not seems to improve the situation.
On the other hand, in most situation, the chromatic aberration is not
noticeable, especially in my portraits shots. I never do portraits under
bright sun light, where the light is too harsh and the model's eyes can't
open up.
Zuiko 180/2.8 is my most favorable tele lens, the resolution is very high,
provide very fine details. For portraits, the quality was even better then
85/2.
C.H.Ling
-----Original Message-----
From: Richard Schaetzl <Richard.Schaetzl@xxxxxxxxxxxxxxxxxxxx>
To: olympus@xxxxxxxxxxxxxxx <olympus@xxxxxxxxxxxxxxx>
Date: Friday, September 01, 2000 6:56 PM
Subject: Bad 180mm/2.8? (was: [OM] Digital OM lenses???)
>David Irisarri Vila wrote:
>
>> ...and some lenses aren´t
>> so good. Olympus don´t have good telephotos in this system.
>> I explain!!! I have one Zuiko 180/2,8 and is lovely, light-
>> weight and sharp; but also it has a terribly chromatic
>> aberration pretty noticiable in every photo;
>
>Sorry to say that, but I suspect your lens is damaged. I have an 180mm
>and I'm not able to detect that chromatic aberrations. I've recently
>shoot a series of architecture photos and non of them show chromatic
>aberrations*, neither with wide open aperture nor stopped down.
>
>Can you tell us under which conditions this aberrations have shown,
>what kind of loupe projector, enlarger do you use to examine the
>photos?
>I'm really curious.
>
>
>Best regards
>
>Richard
>
>
>*Under reasonable viewing conditions, no microscopes. I once had an
>17mm Vivitar lens which produced such aberrations under certain
>conditions and I also had EOS zoom lens which showed absolutely
>horrible chromatic aberrations. In the case of the EOS lens it was
>definitely not caused by a damage because other samples of this lens
>had the same fault.
>
>
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