03-16-2012, 05:45 AM
[quote name='Brightcolours' timestamp='1331850682' post='16751']
Maybe you feel you have given a reason why that will not make more sense, but you have not given such a reason.
[/quote]
Let me cite myself:
You may also have noticed that the maximum aperture I used on the 35mm G was f/4 and not f/2.8. The reason is the following: that lens has been designed for film 20 years ago and left with noticeable residual spherical aberration so as to give a dreamy effect wide open. In simple terms: it is a great lens on the A900 but gives quite blurry pictures wide open on the NEX-7. At f/2.8 everything is still quite blurry and I can't really tell the difference between corners and center. It has nothing to do with the NEX sensor (apart from its resolution), it is a function of the lens.
(Emphasis added)
And maybe I should also add that wide-angle lenses faster than f/2.8 than would give sharp pictures on the NEX-7 sensor are rare.
Last but not least, I feel that there is no point in making a test for you, since you apparently dispute the validity of all tests which do not agree with whatever preconception of the results you have. I have no interest in convincing you, I only have interest in assessing the extent of the "problem" for current photographic practice.
Maybe you feel you have given a reason why that will not make more sense, but you have not given such a reason.
[/quote]
Let me cite myself:
You may also have noticed that the maximum aperture I used on the 35mm G was f/4 and not f/2.8. The reason is the following: that lens has been designed for film 20 years ago and left with noticeable residual spherical aberration so as to give a dreamy effect wide open. In simple terms: it is a great lens on the A900 but gives quite blurry pictures wide open on the NEX-7. At f/2.8 everything is still quite blurry and I can't really tell the difference between corners and center. It has nothing to do with the NEX sensor (apart from its resolution), it is a function of the lens.
(Emphasis added)
And maybe I should also add that wide-angle lenses faster than f/2.8 than would give sharp pictures on the NEX-7 sensor are rare.
Last but not least, I feel that there is no point in making a test for you, since you apparently dispute the validity of all tests which do not agree with whatever preconception of the results you have. I have no interest in convincing you, I only have interest in assessing the extent of the "problem" for current photographic practice.