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Path: utzoo!utcs!lsuc!pesnta!hplabs!tektronix!orca!mako!seifert
From: seifert@mako.UUCP (Snoopy)
Newsgroups: net.rec.photo
Subject: Re: Aperture vs. shutter priority
Message-ID: <593@mako.UUCP>
Date: Tue, 19-Feb-85 15:54:59 EST
Article-I.D.: mako.593
Posted: Tue Feb 19 15:54:59 1985
Date-Received: Fri, 22-Feb-85 01:08:16 EST
References: <1917@sdcc6.UUCP>
Reply-To: seifert@mako.UUCP (Snoopy)
Organization: The Daisy Hill Puppy Farm
Lines: 46
Summary: 

In article <1917@sdcc6.UUCP> ix654@sdcc6.UUCP (ix654) writes:

>     It would probably bother me to know that there are such complex
>& fragile parts in my camera - I'm not saying that they can't be
>made to work reliably, but to me it's simply several more things
>that can jam, break or malfunction in some other way. I suspect that
>this is precisely the reason why the cameras used by most
>professionals (Nikon F3, Pentax LX, Canon F1) have only aperture
>priority. 

The Canon F1 has only aperture priority automation? Since when?
Stock, it is a match-needle camera.  Add the magic prism and you
get aperture priority. Add the motor-drive and you get shutter priority.
(don't ask me why the shutter-priority is tied to the motor-drive,
I haven't the foggiest) Add both prism and m-drive and you have your choice.

I had ergonomic problems with both the F1 and A1.  Fortunately they
came out with the T-70, which has almost everything I want.  The
built-in spot meter (switch-selectable) and multiple automation modes
were big plusses.  Things they left out include depth-of-field preview,
multiple exposure capability, and shutter speed in the viewfinder.
But no camera is perfect, the T-70 came closest so that's what I bought.

The multiple program modes are real handy.  You can have it favor a
fast shutter speed if you need it, or a small aperture if you need
that. or 'neutral', or shutter-priority (with over-ride if you're
way off), or aperture priority for fixed lenses, and there's always
manual.  I usually use the fast shutter speed program mode, which
works quite well for most things.

The reason why most camera companies are using aperture priority is
because their lenses weren't designed with shutter priority automation
in mind.  The travel of the control isn't enough to get good resolution.
So you don't know exactly how far the lens will stop down.  One of the
newer Nikons finally came out with a program mode, and to get around this
problem they do a second light measurement after the lens stops down,
and then tweak the shutter speed to compensate.

        _____
        |___|		the Bavarian Beagle
       _|___|_			Snoopy
       \_____/		tektronix!mako!seifert
        \___/

you know you've been spending too much time on the computer when
your friend misdates a check, and you suggest adding a "++" to fix it.