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Suitable tripod for Pentax 6x7



 
 
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Old April 23rd 07, 06:14 PM posted to rec.photo.equipment.medium-format
Alan Browne
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Default Suitable tripod for Pentax 6x7

Stefan Patric wrote:
On Sat, 21 Apr 2007 17:24:15 -0400, Alan Browne wrote:


Christopher Tidy wrote:

Thanks very much for the thoughts. I did a bit more research and
discovered that the Manfrotto 168 head is the older version of the
488RC0, which has a load capacity of 8 kg, so it should be okay with a
Pentax 6x7. I even found a post at the Photo.net forum by someone
commenting that the 168 head was okay for use with a Mamiya RZ67. Even
if I divide 8 kg by 2, it should comfortably cope with the Pentax.


The 055 is about "right" I would say. The 190 (you mentioned earlier)
is a bit on the light side. I have the 055MF3 (carbon fibre legs) as
well as a 190. I use a geared head, but a medium ball should do as well.



And another recommendation: To reduce camera shake during a tripod
mounted exposure and make for sharper photos, lockup the mirror, if you
can, before tripping the shutter. The torque induced by the mirror
flipping up can really shake a medium format SLR camera a lot. However,
it's only really a problem with slow shutters speeds like less the 1/30 or
so. It also depends on how long a lens you have mounted: longer lenses
amplify the movement.


I would increase the mirror torque/slap range to as fast as 1/125 up to
about 2 seconds. As you imply, different lenses mean different
resonance characteristics due to the slap. Longer lenses would be the
worst for both amplitude and cycle length, I would imagine.

Early edition Pentax 6x7's did not have MLU but it was introduced at one
point and Pentax would even update non MU cameras. (Per Karen
Nakamura's site).

Cheers,
Alan

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