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Latest Review Posted Vivitar Series 1 Close Focus 135mm f2.3
My Vivitar Series 1 135/2.3 is M42 mount.

Pros: The sharpness of my copy is better than the already excellent K135/2.5 and FA135/2.8. I think it is on par with Zeiss Jena MC 135/3.5, with of course about one stop of advantage in the maximum available aperture. Close focusing ability is handy. Built like a tank.

Cons: Very heavy like a tank. Flare control is not the best. The integrated hood is too short for a telephoto with 72mm diameter front glass. Wide open, this lens has a soft-focus look very similar to many other lenses of the era. Close down a bit the soft-focus effect is gone. If you have a K mount version, that soft-focus look will make it very difficult to focus the lens manually. Fortunately, I have a M42 version. :D

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