Yes, indirectly related to focal length since focal ratio is the
important measure for diffraction.
Chuck Norcutt
C.H.Ling wrote:
> Isn't it the diffraction limit is also related to the lens focal length? As
> I remember the shorter the lens the faster it reach the diffraction limit.
> If you have a long lens, you can stop down more before it reach the
> diffraction limit.
>
> C.H.Ling
>
> ----- Original Message -----
> From: "Chuck Norcutt"
>
>> It's not the limit of the lens that's in question, only the limit of the
>> lens at a particular aperture. Small sensors with small pixels run up
>> against the limits of diffraction faster than large sensors with large
>> pixels. Simple as that. Diffraction is worse at small apertures. If
>> you had a 16 MP 4/3 sensor you would not able to shoot at smaller
>> apertures than about f/5.6 in order to reach full resolution at the
>> sensor.
>>
>> Small sensors can perform but they take high quality lenses that perform
>> well at apertures larger than we are accustomed to in 35mm.
>>
>> Chuck Norcutt
>>
>
--
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