With the =ist, a lens must have, and be set on, A

Bill


-----Original Message-----
From: Johan Uiterwijk Winkel [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, August 19, 2003 2:25 PM
To: [EMAIL PROTECTED]
Subject: Re: Views on the F 70-210


Boris Liberman wrote:

> Hi!
>
> Talking to myself I am. Not a good sign this is <grin>.
>
>> I see. Well, I did not know that. But then I suppose it means that my
>> soon to arrive F 85/2.8 soft would have A position too. That's way
cool.
>
>
> I went to Boz's site and saw there that F 85/2.8 soft has no A
> position. Still, both my cameras have no problem with that anyway...
>
How do you meter with a lens without an A position. ?
I want to try to get a lens without an A position (because there are a 
lot of good lenses for little money on the second hand market at this 
moment ) and tryed to meter if with my Pentax *ist body. I took a lens 
with an A position and tryed to measure the light with the lens not set 
to A but to 8.0. In the LCD display (in the M mode) no diafragm value 
was displayed and I could only measure the light with full diafragm(it 
seemed i could only measure the light with the full diafragm opening, 
changing the diafragm on the lens did not influence the measured 
exposure time).

Is this beause i used an A lens or are not A lenses not compatible with 
this body ?

Thanx.

Johan.








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