Archived from groups: alt.comp.periphs.webcam (
More info?)
>>>>I found the DCS-950 on their website, with 0,5 flux @ F 1,4
>>>>
>>>>0,5 flux is pretty good. What does F 1,4 mean?
>>>>
>>>>There's one problem though: it's not sold around here :-(
>>>>
>>>>
>>>>Thanks,
>>>>
>>>>Tim
>>>>
>>>>
>>>>
>>>>>dlink has a .5fc network ip cam,
>>>>>think price is <$200 area
>>>>>
>>>>>
>>>>>"Tim" <tim.INVALID.ADDRESS@microsoft.com> wrote in message
>>>>>news:5l7he1plpgbueghebhh0go95pi9pvjhp65@4ax.com...
>>>>>
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I'm looking for a cam and software to monitor one room. The following
>>>>>>things are on the wish list:
>>>>>>- on motion detection
>>>>>> - send e-mail
>>>>>> - save the video (preferably via FTP)
>>>>>>- decent image under low light
>>>>>>- make the video stream available via the Internet
>>>>>>
>>>>>>No problem on the last item, if I'm a little careful with what router
>>>>>>I get.
>>>>>>
>>>>>>We've got an old computer (Pentium 100) we'd like to use to store the
>>>>>>files on. That's why FTP would be great, then I'd be able to use a
>>>>>>slim system with just an FTP server, instead of a full-fledged Windows
>>>>>>system to run one application...
>>>>>>
>>>>>>Any ideas on what software/camera combination to use?
>>>>>>
>>>>>>
>>>>>>Thanks,
>>>>>>
>>>>>>Tim
>>>>>
>>>Another problem with the DCS-950 is that it has a CMOS sensor and these
>>>aren't good under low light conditions....a quarter inch CMOS sensor
>>>with .5 lux sensitivity?..If it had a built in IR led system then fine,
>>>but it doesn't. One way around it is to build up your own IR led arrays
>>>if you are electronically bent that is. I use 3x30 led IR arrays to
>>>illuminate a (CMOS)cam outside at night (currently offline) which works
>>>quite well as there is no visible light if you want to monitor a room in
>>>the dark.
>>
>>
>> Will this work with an ordinary camera as well? I thought all those
>> cams had an IR filter in front of the lens, so I'd think the IR led
>> array woudn't make a difference.
>>
>>
>> Cheers,
>>
>> Tim
>All CMOS and CCD cameras are sensitive to IR light. If you want to test
>it all you have to do is set up a DV cam (or even an old analogue video
>cam), to your TV and aim the TV's remote at the cam and press a few
>buttons and watch the screen. Or, if you can get away with it, go into a
>computer shop (with your tv remote) and if they have a demo cam running,
>aim your remote at the cam and try it!
>They are most sensitive to IR 'light' in the range of about 890nm which
>is good as this is the wavelength that produces the least amount (none!)
>of visible light. The drawback of using IR is that the image is in B&W.
>I am using it on an old Intel 'Ezycam' (false advertising there!..and no
>longer made) and also a Swann weatherproof camera, which is currently
>not working very well due to 'looking' directly into the sun which
>didn't do it's sensor any good!
Thanks Kim, very interesting!
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