Re: *ist series support for setting the aperture on the lens(was: ist D AE mode for K & M lenses)

[Peter J. Alling]

William,
I guess, I am, Mr A has taken a particular dislike to me, which I don't 
mind since I've killfiled the A*******, I'd much rather
argue about Photography with people I like than anything with an 
obnoxious abrasive A*******.  The only time I see his posts
is when others reply to them.  I usually find this to be blissful.

William Robb wrote:
----- Original Message ----- 
From: "Antonio"
Subject: Re: *ist series support for setting the aperture on the
lens(was: ist D AE mode for K & M lenses)

 

Except reliability also means consistency - if it never works then
   

it is
 

100% consistent and hence reliable, whichh I wuold imagine was
   

Peters spin
 

on things.
   

Who is Peter?
Anyway, my experience with pentax AE is limited to the LX, Super
Program and Program plus. On all three cameras (well 6 if you count
samples I have used) I have had inexplicable underexposure errors
randomly, but fairly frequently.
Honestly, I don't know if it is caused by the ISO resistor, or the
aperture estimator resistor. I do know that replacing the ISO
resistor on the LX (I had all three of mine replaced with new ones
last service) did not correct the problem.
As you said, reliability and consistency are closely related. I
honestly cannot depend on Pentax AE in the form I am used to using it
in to be consistent, therefore it is unreliable.
Regarding the istD and it's use of pre A lenses, the metering method
is 100% consistent and reliable.
This is an improvement.
It means I can use pre A lenses using an automatic exposure method
with an assuredness of correct exposure, something I have not enjoyed
in the past.
I am willing to take the extra button push to get an exposure that I
am certain is correct, over an exposure that may be incorrect,
especially since on a film camera, I have no way of knowing if the
exposure was right or not until some time after taking the picture.
William Robb

 


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I can understand why mankind hasn't given up war. 
During a war you get to drive tanks through the sides of buildings 
and shoot foreigners - two things that are usually frowned on during peacetime.
	--P.J. O'Rourke