Re: Effect of tele-converters on IR focusing.

["J.Wood" <shopper@xxxxxxxx>]

At 07:36 AM 9/30/98 -0700, you wrote:
>I'm considering purchasing a 1.4x or 2x teleconverter when I buy my new
>kit... which will be largely used for IR photography.  I'm concerned about
>the IR focusing marks on the lens however, and whether or not they'll be
>accurate once the teleconverter is in place. 

My esperience with teleconverters is that while they affect the focal
length and aperture they do not change the focusing distance.  The 50mm
lens on my Bronica focuses down to abut 13 inches with or without the 2x
extender (which gives me a very handy close up lens).  

Jim

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