[MF3D.FORUM:483] Re: Sputnik Strangeness

[Marco Pauck <pauck@xxxxxxxxxxxx>]

> > Three of the rolls are fine.  On the fourth roll the right image (as
> > seen when viewing the uncut roll) is sharp, but the left image has
> > significant motion blur.  All the rolls were shot handheld with the
> > bare camera.  I didn't bring a tripod, and I had forgotten the adapter
> > bushing so I couldn't use the flash bracket that I normally hold the
> > camera with.
> >
> > Any ideas as to what's going on?
> 
> Well I still have this problem and I can't figure out what's wrong.  I
> brought the Sputnik with me on an outing to the Bronx Zoo and shot a
> few rolls of EPP.  It had been suggested at the last Third Friday
> Stereo Dinner that I might be rotating the camera around one of the
> lenses while pressing the shutter release.  This time I tried keeping
> the camera pressed against whatever railing was available near
> whatever I was photographing.  I still pressed the shutter release by
> hand.  This didn't help.  I even shot the last two pairs on the last
> roll on a tripod with a cable release and one frame is still blurred.
> 
> I'm pretty sure this is motion blur, not mismatched focus or subject
> motion.  The last two pairs on the last roll were of buildings down
> near Wall Street.  They weren't moving much when I was there.  :)

Well, in principle the Sputnik is one of the few cameras,
almost *not* affected by motion blur due to triggering the
shutter (ever used a Pentax 67 or Kiev 88? ;-)

But here's a theory from by own experience: Maybe one of
the lenses or its elements is not fixed correctly so that
it moves during shutter operation?!

Both lenses of my own Spud had some slack and I always
suspected that some motion blur might occur. However, I
have fixed this problem before taking actual images to
prove this.

It would be helpful if you could show an actual example
by putting it on the Web.

	Marco
--
Marco Pauck -- marco@xxxxxxxx -- http://www.pauck.de/marco/
For every complex problem, there is a solution that is simple,
neat, and wrong.  -- H. L. Mencken