Cosina 80mm, f4.5 (Cosina), Takumar and Tamron 70 mm, f4
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at the maximum aperture and minimal focal length, the Takumar does much better than the competion in the borders and is better in the center, too, though only slightly when compared to the Tamron.
Nice job for the old boy. |
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Cosina 80mm, Takumar and Tamron at 70 mm, all at f5.6
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same story at f5.6: the Takumar leads the pack, where the trailing zooms try to catch up. The Cosina improves visibly
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Cosina 80mm, Takumar and Tamron at 70 mm, all at f8
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at f8, again, the Takumar wins -not hands down but for sure-, while the Cosina is still rather behind the center.
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135 mm, f4.5 (maybe the Cosina a bit more, I have no way to know)
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at 135mm and full aperture, in the center, the Tamron does the best job.
At the borders, there is no clear winner. The Tamron is maybe lightly sharper but I can spot some lateral CA while the Takumar doesn't suffer any, so maybe the latter has the best IQ (image quality). The Cosina does a good showing of itself but it is not very consistent; I already observed that it is not perfectly aligned. |
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135 mm, f5.6
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135mm clearly favours the Tamron, also at f5.6. The Cosina is improving at this aperture
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135 mm, f8
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135mm, f8: no doubt, at 135mm the Tamron gets the prize because it beats the contenders again.
Notice how the Cosina, in spite of its age, wouldn't be that bad if it was more consistent. The Takumar does fine, and it is in the center that the difference against the Tamron is pronounced |
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200mm, f4.5 (Tamron only)
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only the Tamron sports f4.5 at 200mm (so the camera says). Easy win!... but quality is not satisfactory
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200 mm, f5.6
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agh! I was expecting something better from the Takumar here.
The Tamron slaps the other lenses though it manifests some lateral CA, but also the Takumar is displaying some. The performance of the Takumar and the Cosina at the center is vary bad |
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200 mm, f8
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again and again, the Takumar and the Cosina improve but are not quite there...
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200 mm, f11
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I took this shot by mistake. But let's see if the Takumar has still something to say going up to f11... well, actually it improves on all sides but the Tamron at f5.6 is still a bit better, not thanks to a better sharpness but to stronger contrast, instead
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only the Tamron sports the focal length of 300 mm, but I did not shoot outdoor with it at 300mm.
I already know that the image quality falls to the point where I don't usually would go. Indeed, maybe once I'll try at smaller apertures to see if something good can be obtained at 300mm. Not today |