Re: CCTV lens calculator

["A.J." <aj@xxxxxxxx>]

What is the distance from the camera to the target area ?


"G. Morgan" <alarmpro@xxxxxxxxxxx> wrote in message
news:nuc5l256ci0brjcpp3rnl5aej4u07ln515@xxxxxxxxxx
> 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)