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Re: CCTV lens calculator

Subject: Re: CCTV lens calculator
From: G. Morgan <alarmpro@xxxxxxxxxxx>
Date: Thu, 09 Nov 2006 04:55:19 GMT
Newsgroups: alt.security.alarms
References: <n8b5l2l0tfbp2mbvgg0ir19a1qc6e4raca@xxxxxxx> <Ely4h.287473$R63.286148@pd7urf1no>

On Thu, 09 Nov 2006 04:43:16 GMT, Frank Olson
<Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx> wrote:

>G. Morgan wrote:
>> Anybody recommend a good and free CCTV lens calculator?
>>
>
>
>I'm still using the one I got from my Javelin rep.  :-P

I can't get any of the online ones to work with my browser(s)!
Javascript is enabled on Firefox, but no joy.

Lemme ask you this, camera mounted above front doors - needs to see
15' in each direction down (30' total) mounting height of 10'-12'.
What lens for 1/3" ccd?

--

-Graham
(remove the double e's to email)

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