Wear your lead vest when using these lenses

[BrianShaw]

http://en.wikipedia.org/wiki/Fiesta_...oactive_Glazes

[Klainmeister]

I little knowledge can be a dangerous thing.
Background, I have BS and MS degrees in Nuclear Engineering as well as having worked and managed all areas of Commercial Nuclear Power including Health Physics.
The device shown, Inspector EXP has a limit of 300,000 Counts per Minute(CPM) or 100mr/Hr.
Now one would not want to live in a 100mr/Hr radiation field but it would take over 4500 hours of continuous whole body exposure at 100 mr/Hr to reach the LD/50 or Lethal dose to 50% of the individuals exposed without any medical intervention.
The video seems impressive but the levels measured don't appear to excede 10,000 CPM or further factor of 300 less exposure. So a little noise makes what is in reality very low readings seem very impressive.
But there is more, the different organs of the body have different sensitivities to radiation, the lens of the eye being particularly more sensitive. Any beta(electrons) or Alpha(Helium nuclei) particles will be stoped by the body of the camera from reaching the eye leaving us to contend with Gamma(High energy Photons or light) particles.
At the levels this device appears to be measuring and the usage factor, I would not have any worries.-Dick

Hey Dick, you still work in the nuclear industry? Where ya at?

[E. von Hoegh]

How would we see through the vest? I'd be more worried about getting that eye cancer that travels immediately to the brain.

You get that from TV, not camera gear. Camera gear is actually an antidote.

[DREW WILEY]

Lens design in the EU or for anything marketing to the EU has had to change due to ingredient
restrictions, including radioactive or toxic. Some excellent lenses have disappeared from new mfg
due to this. The classic dye transfer color prining process used a Thorium mordant. Some of us have
substituted uranyl nitrate (lab grade yellowcake). Can cause a customs issue in certain cases, but 100g per purchase is really silly to question, because it would take shiploads of the stuff to make
a dirty bomb.

[benjiboy]

What about Thorium toothpaste http://www.orau.org/ptp/collection/q...toothpaste.htm, the mind boggles.

[E. von Hoegh]

What about Thorium toothpaste http://www.orau.org/ptp/collection/q...toothpaste.htm, the mind boggles.

You missed the radium water. http://www.orau.org/ptp/collection/q...aterjarwtr.htm

[Mainecoonmaniac]

What about Thorium toothpaste http://www.orau.org/ptp/collection/q...toothpaste.htm, the mind boggles.

Have anybody heard of Darkie toothpaste?

http://en.m.wikipedia.org/wiki/Darlie

[AgX]

A overview of photographic lenses containing radioactive elements:

http://camerapedia.wikia.com/wiki/Radioactive_lenses

[BrianShaw]

Have anybody heard of Darkie toothpaste?

http://en.m.wikipedia.org/wiki/Darlie

... or Pit Stop, the auto racer's deoderant:

http://www.autoweek.com/article/2011...news/110629885

[jnanian]

Even the real Fiesta (orange) was radioactive, not just cheap knockoffs.

hi brian

a friend in college used to tell me about artists who would buy any sort of fiestaware they could find, knock offs, the real thing
and grind down the paint to make their own radioactive gazes ... from what i remember, it requires a government permit
as a nuclear power facility ( or something like that ) because of handling issues ... this was told tome 25 years ago, i might be mis-remembering what he said

Both bananas and Brazil nuts are high in potassium. ⁴⁰K is radioactive decaying mostly by emission of a beta particle. Fortunately for us it has a very long half-life of 1.2×10⁹ years. Still each of us experiences about 4500 events/s from the potassium in the body.

hi jerry,

brazil nuts have amounts of selenium in them too
and according to dr house too many brazil nuts
can cause poisoning that looks very much like radiation poisoning
you just need a moth larva antidote, it works well as a tea
and counteracts both poorly advised chemotherapy as well as the selenium.

it would be good kodak or ilford or ?? sold moth larvae with every container of
selenium toner, it might come in handy !