[rollei_list] Re: Spinning front taking lens and postings

  • From: Bob Shell <bob@xxxxxxxxxxxx>
  • To: rollei_list@xxxxxxxxxxxxx
  • Date: Wed, 28 Dec 2005 16:27:19 -0500


On Dec 28, 2005, at 4:00 PM, Jerry Lehrer wrote:

You think I am joking about the spinning lens elements?
In fact there was a line of Zeiss(?) lenses that had an
internal component that was deliberately spun by the action
of a pneumatic bulb and rubber air tubing. This was done to
permit uniform exposure an the film.  Even Richard can
explain that.


It was an early wide angle. What was spun by the air when you squeezed the bulb was a propeller in front of the lens. The purpose was to act like a center grad ND filter and even out the exposure.

Bob


"At the age of six I wanted to be a cook. At seven I wanted to be Napoleon. And my ambition has been growing steadily ever since." - Salvador Dali


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