You're right of course the shutter on a mechanical camera even new
could be off by as much as a third of a stop. In an old Modern
Photography essay by Keppler, I remember reading that the fast
shutter speeds, i.e. those above 1/1000 sec. could be off by as much as
2/3 stops. If there is that much variation why add more? If you cannot
trust the marked speeds why attempt using unmarked speeds.
I really don't see the point. Are you saying that DOF is so important that
you would rather not change your lenses f stop and would rather adjust the
shutter to an in-between setting? At least there is some claim to linear
response with in-between f settings. There none with in-between shutter
speeds.
With the latitude of most modern print films, (those produced in the last
50 years at least), I doubt very much that you will see anything like that
much variation in the print. Unless you were already just at the edge of
an acceptable exposure.
At 06:39 AM 7/18/2001 -0500, you wrote:
>Do you really think your shutter and aperture
>are that accurate?
>
>Here's a simple test. Shoot a frame with flash
>and set the SS and half of sync speed. (1/250 if
>sync is 1/125). Then see what the % error is on
>the print. It'll be off at least 10%, unless you're
>lucky a really good body sample.
>
>Also, even if you guestimate on what the ss will be
>between clicks, you may get closer to what you want
>on the neg than by sticking to the detents.
>
>The camera should serve the photographer.
>
>Collin
>
>>Date: Tue, 17 Jul 2001 22:52:27 -0400
>>From: Peter Alling <[EMAIL PROTECTED]>
>>
>>But there is no guarantee of just what shutter speed will be delivered or
>>for that matter how it will relate to the meter reading.
>
>
>* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
>
>-
>This message is from the Pentax-Discuss Mail List. To unsubscribe,
>go to http://www.pdml.net and follow the directions. Don't forget to
>visit the Pentax Users' Gallery at http://pug.komkon.org .
-
This message is from the Pentax-Discuss Mail List. To unsubscribe,
go to http://www.pdml.net and follow the directions. Don't forget to
visit the Pentax Users' Gallery at http://pug.komkon.org .
