Scott,
Combining the T28 and a 135 mm doesn't get you the best pictures. That 1.6
feet is a bit to far for a T28, the flash gets to axial to produce good
shadows, you get over-exposed foregrounds - under-exposed backgrounds and
you could get into problems with reflections. You could diffuse one of the
T28 heads with a 21mm diffusor (for the T32) and hand-hold the other T28
head a bit off-center. Better yet, combine a diffused T28 with a T32, hold
that T32 on the side or above the subject.
Good luck,
Daan
Pictures of Insects at:
http://www.kalmeijer.net
> Yeah, diffuse the light, use a separate reflector card, and use a flash
meter
> for exposure with flash on manual. Other than that, bracket & hope.
>
> Larry
>
> Scott Gomez wrote:
>
> > My girlfriend is putting her purloined (from me) OM-4 to use, trying to
> > photograph some small jewelry items. Here's the setup:
> >
> > OM-4 with 65-165 Telescoping tube and 135/4.5. Flash is from T-28 Twin
unit.
> > The chart says that for the T-28 with this lens/tube in MANUAL
high-power
> > mode on the T-28, the exposure is 1.6 feet at F45 and ASA100. However,
we're
> > getting a consistent UNDER reading using TTL flash mode at only F22 with
> > ASA200 film.
> >
> > We're almost dead on at 1.6 feet from her subject, and I suspect the
> > background is what's causing trouble. It's a jet black piece of velvet.
> > Anyone have any suggestions? Are we truly underexposing? Or are we
likely to
> > be over-exposing the actual subject and getting an UNDER reading due to
the
> > dark background.
> >
> > ---
> > Scott Gomez
> >
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