Tamron "Legacy" SP 90mm f/2.5 Macro Is A Winner!

Started Jul 12, 2012 | Discussions thread
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Rich O Regular Member • Posts: 402
Re: Tamron "Legacy" SP 90mm f/2.5 Macro Is A Winner!

01F is the 2x tele-converter - http://www.adaptall-2.org/lenses/01F.html

Some of them have the knurled rubber like this one:

The one I have has the other type of rubber ring

18F has no glass.  Its just a tube that puts the lens further out to allow for 1:1 macro.

With the 18F you won't loose any IQ because your not putting any additional glass in between the lens and the sensor.  Only downside is you loose your ability to focus to infinity. So you can only really use the 18F for macro work.

I've used the Tamron SP 90mm with the 01F and don't see any noticeable degradation of IQ.

The Tamron SP 90mm is very sharp and works great for me and is becoming my favorite lens.

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