[rollei_list] Re: Pentax Lens and others OT
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Mon, 17 Oct 2005 19:52:03 -0700
----- Original Message -----
From: "Eric Goldstein" <egoldste@xxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Monday, October 17, 2005 6:53 PM
Subject: [rollei_list] Re: Pentax Lens and others OT
JMN * wrote:
Some time back there was a discussion on the unusually
high radiation levels emitted from certain Pentax lenses.
Does anyone remember which lens this was?
Was it only the Pentax lens that had high levels or were
there others?
John
http://medfmt.8k.com/mf/radioactive.html
http://www.hermes.net.au/bayling/repair.html
---
Robert Monaghan's site is worth bookmarking for many
reasons.
I would certainly NOT do the "repair" shown in the second
URL, one does not want radioactive dust or small particles
flying around.
Please note that some radiation is beta rays which die
out very quickly in air. The problem with Thorium is that
its output of gamma rays increases with age and can be
hazardous.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
---
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