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Forum: Pentax SLR Lens Discussion
03-04-2019, 02:05 PM
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I had a 100mm f3.5, in fact it was not Pentax branded but Cosina.
This lens has been sold under many different brands, it is called "cream in a yoghurt cup".
It was my first macro lens. In reality it reaches 1:2 alone, and 1:1 with a specific close-up.
It is "all plastic", looks cheap and the AF is very noisy. It is not a beautiful lens.
It is a rather good macro lens (in terms of image general sharpness) but definitly not it the same league than DFA 100mm F2.8, Sigma 105mm F2.8, Tamron 90mm F2.8, Sigma 180mm F3.5, Irix 150mm F2.8, etc. Even the old Tamron 90mm F2.5 (adaptall mount) is way better.
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