[rollei_list] Re: Kalart RF's
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Sun, 25 Mar 2012 20:02:29 -0700
----- Original Message -----
From: "Phil Forrest" <photo.forrest@xxxxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Sunday, March 25, 2012 7:08 PM
Subject: [rollei_list] Re: Kalart RF's
Kalart made a lighted attachment called the Focuspot for the
rangefinder.
http://lommen9.home.xs4all.nl/focuspot/index.html
I fashioned one up about 10 years ago to see how accurate
the idea was
and since I used a focused LED for the light source, it was
good out to
about 15 feet. Any dimmer light source would be too diffuse
in all but
the very darkest conditions for the shooter to use.
Phil Forrest
The Focuspot uses a penlight type bulb with a lens on
its tip. Mine makes fairly sharp spots but not super bright.
I think it was assumed it would be used under very dim light
conditions, dim enough to make focusing with the rangefinder
in the normal way difficult. It never occurred to me to try
an LED in the thing but it might be brighter than the
original bulb and have a considerably longer life. I
suppose I may have used a Focuspot but don't remember ever
doing so. I have one in my 4x5 Pacemaker kit.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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