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Re: Security Camera question
I would take the figure of 0.003 lux with a pinch of salt, that may be the
theoretical performance of the CCD but with a very small fixed iris lens in
front of it, no way hosay!
As a mater of interest here is an idea of different lux levels:-
Full sunlight 10,000-1,000,000
Overcast day 100-10,000
Twilight 1-10
Full moon 0.1-1
Overcast night 0.01-0.1
Starlight clear 0.001-0.01
Starlight overcast 0.00001-0.001
I would agree that if you want low light or infra red performance go for
mono.
HTH
Alancc
----- Original Message -----
From: Dave McLaughlin <dave@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Wednesday, June 11, 2003 11:32 AM
Subject: Re: [ukha_d] Security Camera question
> Hi David,
>
> The lux should actually be 0.003 as I was thinking of cameras I used
to
use offshore which are even better but hughely more expensive.
>
> I'll put an image up on the files area tonight.
>
> Dave...
> ----- Original Message -----
> From: David Claxton
> To: ukha_d@xxxxxxx
> Sent: Wednesday, June 11, 2003 11:20 AM
> Subject: RE: [ukha_d] Security Camera question
>
>
> I don't particularly need colour. I just thought it would be nice to
have
> and make for more identifiable screenshots. But if it's a case of
colour
> over low light quality then low light quality wins. The idea of
switching on
> the light when the camera detected movement was what I was planning
to
do,
> that's why I was hoping that the streetlight would be enough for
colour
> camera illumination.
>
> Are the 'low light B&W (0.001 lux)' cameras you talk about the
mini cam
> ones. If so is it possible to throw up an example pic somewhere?
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