I Have A Life.

The above photos were shot with 4 different lenses:

(1)Auto 200mm F/4 Q.C. - A lot of fungi on glass

(2)AI 80-200mm F/4.5 - relaxed focusing ring

(3)AF 70-210mm F/4 - a lot of dust on each piece of glass, scatched

(4)AF-D 70-210mm F/4-5.6 - prefect condition



All of them were set at 200mm. I have already know that Lens (3) and Lens (4) do not give sharp image at 200mm before the test, but I just want to compare.



By the way, I did another test before, @85-135mm, Lens (3) give pretty sharp image.



I shot a small hut away from 80+m.



Setting of D70:

ISO200, MF, M-mode, F8, 1/500s, sunlight, Portrait



Images:

cropped from 100% original files without any adjustment.



RESULTS:



Sample (a) from Lens (1)

Sample (b) from Lens (2)

Sample (k) from Lens (3)

Sample (d) from Lens (4)



CONCLUSTIONS:



Lens (1)

Should I repair this lens by cleaning fungi on it? Color tone is a little bit cool, good for landscape.



Lens (2)

People keep giving bad words at their experience of using this lens. Now it is my turn to celebrate! ;) Color tone is warmer than that of Lens (1)



Lens (3)

Gee! Dusts hurts the lens. I really should take it to remove all dusts after the Easter Holiday. After repairing, test again.



Len (4)

Doesn't look good if stand alone, but if you compare with photos for AFD 24-120 F3.5-5.6, Lens (4) is much sharper than AFD 24-120 lens within the range from 70mm to 135mm.