Re: [OM] Vivitar 2x macro teleconverter

[Lex Jenkins]

I've been looking for an answer to this myself.  Determining magnification 
ratio seems to require switching back and forth between scales.
Lex
===

> From: "Pawel Golik" <pgolik@xxxxxxxxxxxxx>
> Subject: [OM] Vivitar 2x macro teleconverter
> Date: Fri, 11 Aug 2000 13:33:03 -0400
>
> Hi OM-gang!
>     Having read so much praise of it recently on this list I have just
> bought the Vivitar 2x Macro teleconverter from keh.com (BTW, they still 
> have
> one Ex+ for $59 if anyone's interested). It has a focusing ring (my old
> no-name 2x teleconv didn't have one), I presume that it's for macro. It has
> two lines of numbers: one in blue that goes from 1:1 to 1:3 and then it has
> 0.45M/50mm, the other one is in white and goes from 1:1.15 to 1:20 and then
> infinity/50mm. I guess these are the macro settings for a 50mm lens, but
> what is the difference between the blue line and the white line. Is it that
> the blue line corresponds to the lens focused to 0.45 and the white one to
> the lens focused to infinity, or are they for two different types of 50mm
> lens?
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