This is the CA I was talking about, check the watch:
With 300/4.5 blacknose:
F4.5 (FF)
http://www.accura.com.hk/temp/IMG_1336.jpg
F8 (FF)
http://www.accura.com.hk/temp/IMG_1338.jpg
In real live on the E-1
Zuiko 300/4.5 wide open
http://www.accura.com.hk/temp/P1087751.jpg
Zuiko 500mm F8
http://www.accura.com.hk/temp/P1087753.jpg
We do not have close bird to shoot, all are very far way so we need to crop
and make use of the best lenses.
I'm sure the silvernose 300/4.5 I once own had the same problem but the test
was made with film some years ago and it take time to find out.
C.H.Ling
----- Original Message -----
From: "Ken Norton"
> >
>> I stop using the long Zuiko on the 4/3 after getting the DZ50-200 and
>> 1.4x.
>> Both 180/2.8 and 300/4.5 has CA issues, with 2x it magnified the problem.
>> I
>> did use 50/3.5, 90/2 and 135/4.5 on the 4/3 for macro.
>>
>
>
> Interesting. My new 300/4.5 Silvernose has yielded absolutely no CA that
> I've been able to find. In fact, I'm convinced that it's the sharpest
> 300/4.5 I've encountered too and can be shot wide-open without fear.
--
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