[rollei_list] Re: unsuscribe and the Kalart Focuspot for Rollei
- From: Don Williams <dwilli10@xxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Mon, 09 Jun 2008 21:50:33 -0500
At 10:27 PM 6/9/2008 -0400, you wrote:
DAW,
Perhaps you harken back on the Kalart Focuspot? An example for
Rollei Automats sold on ebay a week or so ago:
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170223973112>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170223973112
Very interesting item.
Late Pacemaker Graflex cameras came with something similar and some
form could be added to older side mounted rangefinder models getting
power from the batteries in the flash handle.
I have a Rolleimeter on a 2.8C and fast focusing is a
breeze. Incredibly useful accessory which should have been carried
on to the removable finder model Rolleis.
Ah, yes, Kalart would have brought me into focus on the item.
My first Rollei was a 2.8C, circa 1954 Hong Kong, Navy, and all
that. I bought the works but don't remember the price.
I never bought a Rolleimeter because I always had the feeling that
that slim glass element in the center would break easily.
I can tell you that something like that for underwater use would have
been nice, if Hans Haas had the time to do it.
The Rolleimarin system reverses the horizontal direction of movement
of the subject, making it a little hard to get used to. I almost had
a pentaprism added to my Rolleimarin by a guy who was making prisms
for an optical surveying instrument we were designing, but decided
not to at the last minute. It would have required cutting and
welding the housing, not a good idea.
A typical focusing solution some friends use, who do just close-ups
underwater, is a pair of light beams that converge at a specific
distance. I guess that would be a fixed-focus-Kalart Focuspot.
As an alterative they use a wire frame, which is at the pre-set focus
distance and just out of the picture area. This also works above
water for folks who like to photograph flowers, but I never see it
discussed in any forums, just camera clubs in SD. I guess it would
also work for photographing bees, but one would have to be a fast worker.
The Rolleimarin accessories included close up lenses that could be
rotated into and out of the lens line with a turret, nice
solution. It could also be used to add or not add a color-correcting
filter, useful up about 20-30' depths. Beyond that, no red anyhow.
DAW
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