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

Started Jul 12, 2012 | Discussions thread
Rich O
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Re: Tamron "Legacy" SP 90mm f/2.5 Macro Is A Winner!
In reply to declan79, 11 months ago

declan79 wrote:

Hi,

I find that my 01f consists of two separate tube :
-01f s/n 31504 (this one with optical glass)
-01f s/n 109533 (w/o glass)
Both has teleconverter 2x marking on the body

So, yes I had the 3rd 18f for 1:1 macro with the 90/2.5,

My confused is it has to put on both the 01f for effective 2x or only the one with the optical glass only?

I think you have a broken or modified 01f. Did you recently purchase the 01f s/n 109533?  Or did it come with the lens?  I have heard of people knocking out the glass in a broken 01f to make it an extension tube.

So you only need to put on the 01f w/ glass s/n 31504 to get 2x focal length and 1:1 macro.

You also can put on the 01f w/o glass s/n 109533 to get 1:1 macro but you will not get 2x focal length or ability to focus to infinity.

You can stack the both  01f get 2:1 macro or add the 18f if you still have it to goto 3:1 macro

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