Thanks for the clarification, I meant the 50mm gave the highest repro of the
lenses I had listed.

I did attach it to a 30/2.8 once, but the liability of being a 60/5.6 was to
great for me to find any real usefulness for it.  Glad you had better luck.

Thanks,

William in Utah

----- Original Message ----- 
From: "Dag T" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 19, 2003 9:01 AM
Subject: Re: Vivitar 2x macro focusing T/C


> På 19. nov. 2003 kl. 16.03 skrev William Johnson:
> > I don't have a manual, and I don't have it in front of me right now,
> > but
> > there are two scales on the lens, of which you are aware.  The scale
> > ending
> > in 1:1 shows the reproduction ratio for a 50mm lens focused at .45
> > meter,
> > typically minimum focus for a standard 50mm lens.  The other scale
> > shows the
> > reproduction ratio with a 50mm lens focused to infinity.
>
> That´s right, I´ve got mine here.
>
> > Although I don't beleive that teleconverters and wide angle lenses
> > make for
> > a very good mix, I've had good success using this teleconverter with
> > the
> > following lenses:
> >
> > 50/1.4
> > 85/2
> > 105/2.8
> > 135/2.5 and 3.5
> > 300/4
> >
> > The highest macro reproduction ratio (1:1) is acheived with the 50mm
> > lens.
>
> No, I´ve used it with a 28 2.0.  You get a 56 4.0 focussing to
> approximately 1.2:1.  It wasn´t very sharp wide open, but OK for some
> applications.  I sold a picture taken with it at f:45. It was the only
> way to get that kind of DOF/FOV combination.
>
> DagT
>
>

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