We are taking about the resolution of 90/2 at F22 should be close to 4MP
only. And this is a 10MP image of same subject and similar FOV (actually
favour to the 10MP image as I should have used a 45mm lens).
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt"
> Hmmm. You're quite right. The now famous vent fan louvers are nowhere
> near being resolved in either image. But I've forgotten now what we
> were originally comparing. The 90/2 was in there somewhere. Are we
> comparing apples and oranges due to different focal lengths?
>
> Chuck Norcutt
>
> C.H.Ling wrote:
>> I just avoid mentioning it, but as you have asked.... this is the best
>> image
>> I got with a fixed 50mm lens (I didn't test the 50/1.4 at F4 or below),
>> it
>> is...
>>
>> Even better than the famous 50/2 macro at F4 (and this macro is like
>> new):
>>
>> http://www.accura.com.hk/temp/50M2F4.jpg
>>
>> May be the 50/3.5 at F5.6 come close:
>>
>> http://www.accura.com.hk/temp/5035F56.jpg
>>
>> BTW, I found most fixed Zuiko reach its max performance at 2 stops from
>> max
>> aperture. Further stop down does not improve much.
>>
>> C.H.Ling
>>
>> ----- Original Message -----
>> From: "Chuck Norcutt"
>>
>>> Why do I have to blame the camera? Why can't I blame the lens
>>> performance at f/2.8?
>>>
>>> Chuck Noructt
>>>
>>> C.H.Ling wrote:
>>>> To add more fun to the discussion, here is a shot with 50/1.4 at F2.8
>>>> on
>>>> E-3.
>>>>
>>>> E-3 RAW converted with Oly RAW, sharpness -2, NR: off
>>>>
>>>> http://www.accura.com.hk/temp/50mmF28.jpg
>>>>
>>>> The 90/2 at F22 shot still look better. Ok, you can blame the strong AA
>>>> filter on E-3 :-)
>>>>
>>>> C.H.Ling
>>>>
>>>> ----- Original Message -----
>>>> From: "Moose"
>>>>
>>>>>> But why have a 21MP camera if your happy with 4?
>>>>> I'm not quite convinced that the theoretical charts agree with
>>>>> practical
>>>>> experience. The subjects are complex, the lenses are complex and the
>>>>> releation of lens to sensor still a bit murky. I've done tests where
>>>>> more MPs in the same size actually resolve less than fewer.
>>>>>
>>>>> While the theory is generally correct, I'm not sure it plays out that
>>>>> simply in practice. C.H.'s f22 image lookslmore like 6+ MP to me than
>>>>> 4.
>
>
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