Yes, you are right. Looking at the shadow area of both images, they are
almost the same. I think I was confused by the sunlit area of the 100/2 but
the edges of 90/2 is visible better.
The air here is not very good but there are still lots of clear days
especailly in summer :-)
http://www.accura.com.hk/temp/IMG_0098s.jpg
For the 100/2 image I remember the focus was made at 1/4 from the edge to
balance the center/edge details. I will try to made another test again to
focus at the center only.
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
>I don't see much difference at all except that the 100mm shot has some
> direct sun and therefore more contrast.
>
> ps: This may be the first test shot from your apartment where the air
> is clear enough that I can see a mountain in the background at upper
> right. I never knew it was there. :-)
>
> Chuck Norcutt
>
>
> On 2/4/2012 10:40 PM, C.H.Ling wrote:
>> I'm a bit relaxed as you say there were focus error, if one can see the
>> difference with E-1's LCD then the lens is very bad, as the embeded JPEG
>> is
>> only 1280x960 pixel.
>>
>> Some time ago I did a comparison test on 90/2 and 100/2 with 5D II for
>> distance object. 100/2 is slightly better at the center but 90/2 is very
>> even across the field and better than 100/2 at the edges. I don't think
>> 90/2
>> will do poorer for close objects.
>>
>> 90/2 at F4 no sharpen
>>
>> http://www.accura.com.hk/temp/IMG_9566.JPG
>>
>> 100/2 at F4 no sharpen
>>
>> http://www.accura.com.hk/temp/IMG_9568.JPG
>>
>> Actually, I'm rather disappointed on my 100/2, the poor edge performance
>> make the lens not good for landscapes.
>>
>> BTW, I don't have problem to focus the 85/2, 90/2 and 100/2 with 5D II.
>>
>> C.H.Ling
>>
--
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