Had a little talk about the 1,7 AF-converter with Fovi. They did not know
whether it works at the Series 1 zoom, as I assumed, but they did tell me
that it didn't perform well with the FA 80-320/4,5-5,6. (To who ever that
might be interested in this piece of info).

They also confirmed that they do have it in stock :-)

Tim
Another Norwegian.

Never underestimate the power of stupidity in large crowds 
(Very freely after Arthur C. Clarke?)

-----Original Message-----
From: Tim Øsleby [mailto:[EMAIL PROTECTED] 
Sent: 27. juni 2005 01:33
To: pentax-discuss@pdml.net
Subject: RE: TCs on digital

Mark, or other gearfreaks. 

I've bought myself a Vivitar S1 70-200 ver. 3.
Most likely I will go to Norway Cup (a huge international soccer tournament
for kids) and want to do some shots. My Vivitar is a bit to short, and the
AF is a bit to manual ;-) for this purpose.

Now I wonder, could it be an idea to get a Pentax 1,7 TC/AF-converter and
use it with this lens? (I think Fovi has one in stock). I believe you have
both (the Vivitar and the TC) Mark, have you ever tested this combo? Will it
focus fast enough (at a Ds), and does it perform well?

Tim
Another Norwegian.

Never underestimate the power of spupidity in large crowds 
(Source: somebody)


-----Original Message-----
From: Mark Roberts [mailto:[EMAIL PROTECTED] 
Sent: 22. juni 2005 18:42
To: pentax-discuss@pdml.net
Subject: Re: TCs on digital

"Collin Brendemuehl" <[EMAIL PROTECTED]> wrote:

>Any favorites or criticisms in this area?
>Many raved about the Sigma APO on film.
>Has it been evaluted on digital?
>How of the standard, non-APO, verison?

For teleconverters the results depend mainly on the lens you're using it
with. I've been very impressed with the Pentax 1.7x AF teleconverter.
Here's the PESO I posted yesterday:
>> http://www.robertstech.com/temp/eric.jpg
>> ist-D, ISO 800, FA*80/200/2.8 with 1.7x AF teleconverter
>> 1/400th sec @ f/14

-- 
Mark Roberts
Photography and writing
www.robertstech.com









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