Excellent Hans. I am looking forward to the results and the rig.
Foxy
----- Original Message -----
> Last week I collected the used Hama Tilt/Shift Bellows that I discovered
> earlier. It needed some adjustments and one of the tightening screws was
> missing, but it's working fine now. Yesterday I picked up the OM adapters
> for it, so - party time!
>
> Let me describe it first. It is smaller and lighter than the OM bellows,
and
> not built as sturdy. The clamping screws are smaller, and because there
are
> so many of them it's easy to loosen the wrong one. But when you fasten
them
> all, the construction seems stiff enough for high magnifications.
>
> Both the front panel and rear panel can be shifted 2cm. to the left,
right,
> up and down, and tilted 60 degrees upward, downward, clockwise and
> anti-clockwise. Extension including the body and lens adapters can be
varied
> between 60cm. and 170cm.
>
> This means that the 135mm/F4.5 Macro Zuiko can focus to infinity and it
> delivers a miniature technical camera that is not limited to macro shots!
> Adapter rings are available for M42, Pentax K, Nikon, Minolta, Canon and
OM.
> Wether or not large format lenses or enlarging lenses can be mounted and
> used I don't know. Without the front adapter the screw thread is supposed
to
> be T2. The OM lens adapter is manual (aperture closes when you turn the
> aperture ring); there is no semi-auto provision for a double cable
release.
>
> I paid only $85 for the bellows and another $85 for the OM adapters. The
> normal price (yes it is still available) is supposed to be $600~$650
:)))))
>
> First impressions: it works! I tried both the 135/4.5 and 80/4 macros, and
> was able to achieve a huge gain in DOF!
>
> The test rig I set up was a ruler laying flat on the table, and the
bellows
> aimed in an angle of about 45 degrees to it, camera in vertical position.
>
> First the 80/4 mounted, using an extension of 9.5cm, at F4. The DOF was
only
> 0.5cm. Then I applied a front downward tilt, and a slight rear shift.
> Result: the ruler became sharp over the entire length of the frame, 4.5cm!
>
> Same with the 135/4.5. I used the full extension of 17cm, at F4.5. The DOF
> here was also about 0.5cm. A downward tilt, and some shift adjustments,
and
> voila! The full length of 6cm was in focus. Still without stopping down!
>
> If you only shift the bellows, for perspective control, there's no
apparent
> image masking or vignetting. If you tilt, however, on the 135/4.5 there's
a
> very clear masking - when you're using horizontal format and a down tilt,
> the image mask changes into panorama format. But this problem is solved by
> applying a rear panel shift.
>
> This bellows is ideal for any situation where you just aren't able to put
a
> normal bellows in the right position for optimum perspective or DOF.
>
> I'll post some pictures of it (and of course, shots made _using_ it) on
the
> e-SIF in the near future...
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