Re: [OM] 200/f4 + Shutter Shudders :Final Word(?)

[gary edwards]

I intended that the flash be held off-camera in the normal document copying 
configuration: 45 degrees off on both sides.  Should have stated that.
Gary Edwards

> From: "Barry B. Bean" <bbbean@xxxxxxxxxxxxxx>
> Reply-To: olympus@xxxxxxxxxxxxxxx
> To: "olympus@xxxxxxxxxxxxxxx" <olympus@xxxxxxxxxxxxxxx>
> Subject: Re: [OM] 200/f4 + Shutter Shudders :Final Word(?)
> Date: Fri, 07 May 1999 09:22:34 -0500 (CDT)
>
> On Thu, 06 May 1999 21:48:03 -0500, Gary Edwards wrote:
>
> >Here's how to settle the question of whether shutter-induced vibration is 
> the culprit in
> >the apparant poor performance of the 200/4.  Shoot the test using open 
> flash in a dark
> >room.  Since you opened the shutter prior to the flash (using bulb 
> setting and a locking
> >cable release), there will be no camera movement (don't tap your feet 
> while shooting!).
> >If the results are still soft, it's the lens.  If it's sharp, it's 
> camera/lens
> >resonance.
>
> Is it possible that the flash might generate a small vibration?  It
> would certainly change the center of gravity.
>
> BBB
> -
> B.B. Bean - Have horn, will travel                              
> bbbean@xxxxxxxxxxxxxx
> Peach Orchard, MO                                       
> http://www.beancotton.com/bbbean.shtml
>
>
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