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[OM] Re: Vivitar Automatic Tele Converter 3X-21

Subject: [OM] Re: Vivitar Automatic Tele Converter 3X-21
From: "Piers Hemy" <piers@xxxxxxxx>
Date: Tue, 27 Feb 2007 09:27:31 -0000
I remember getting a 3x TC decades ago, thinking it woul be the answer to
not being able to afford longer lenses.  It will cost you 2.5 stops by my
reckoning - an f/2 aperture  will have the effect of f/6; an f/4 the effect
of an f/12. 

Do I sound very unenthusiastic?

--
Piers 
           

-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Scott Peden
Sent: 27 February 2007 06:43
To: Scott Peden
Subject: [OM] Vivitar Automatic Tele Converter 3X-21


Can anyone tell me what quality this is? It is 58 mm long or 2.25 inches
long. 

 

Anyone know how many F stops I lose when I use this?

 

I tried googleing this a couple of times and can't find out anything.

 

I just put it on a 3.8f 210 mm Haminex lens and the initial tests (indoors,
corner to corner in my bedrooms) amazed me, I thought I was using my nicer
2X Vivitar lens that is about 1.5 inches thick. I've got to have good
weather to try this out where I have been shooting the Red shouldered hawk.



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