Guest nhastie Posted February 27, 2006 Share Posted February 27, 2006 Hi All I`m Looking at upgrading a CCTV system which has currently has a DVR + 16 cameras being: //.National Installer.// badged Baxall CDSP9313/LV. Lenses are: VD3514 3.5-8mm 1:1.4 1/3" CS. Trawling this forum I quite fancy these cameras: Sony SSC-E478P day/night Camera specs... Image device: 1/3type CCD with SuperExwaveTM technology Sensing area: 4.8 x 3.6mm Video Signal: 1.0 V peak to peak at 75 Ohms, sync negative Horizontal Resolution: 540 TV lines Signal/Noise: Better than 50 dB (AGC OFF, Weight ON) Auto Iris Lens: DC servo My question is will the VD3514 lenses currently on the Baxall cams fit the new Sony, would they do the new high-res Sony any justice and if not then what lens could you reccomend for me? I may be adding IR illumination to some cameras in the future - if this makes a difference at all? , Nigel Link to comment Share on other sites More sharing options...
Guest Peter James Posted February 27, 2006 Share Posted February 27, 2006 Both cameras are 1/3" so the lens's will work but Day/Night cameras really need Day/Night Lens something like the Pentax or Cannon. Pete Link to comment Share on other sites More sharing options...
Guest stevey Posted March 1, 2006 Share Posted March 1, 2006 Both cameras are 1/3" so the lens's will work but Day/Night cameras really need Day/Night Lens something like the Pentax or Cannon.Pete Do not get this camera for infrared, it goes out of focus trust me. Link to comment Share on other sites More sharing options...
Rich Posted March 2, 2006 Share Posted March 2, 2006 Do not get this camera for infrared, it goes out of focus trust me. You mean it physically cannot hold its internal chip in place? the camera does not go out of focus, its the lens and the way it is set up that makes it go out of focus. Link to comment Share on other sites More sharing options...
Guest nhastie Posted March 2, 2006 Share Posted March 2, 2006 Thanks for the help so far people ! Ive been recomended this lens with it... Pentax: C70315wx specs are... Lenses: 1/3", Fixed Focus Auto Iris For CCTV Cameras 1/3", CS, 3.0-8.0mm, F1.0-360, AI, plugged (25cm lead) day/night. 1/3", CS, 3-8mm, F1.0-360, AI, P (25cm lead) day/night seen here... http://www.norbain.co.uk/products//ref:0240340/ If you have any comments I`d like to hear them please. Thanks, Nigel. Link to comment Share on other sites More sharing options...
Guest stevey Posted March 2, 2006 Share Posted March 2, 2006 Thanks for the help so far people !Ive been recomended this lens with it... Pentax: C70315wx specs are... Lenses: 1/3", Fixed Focus Auto Iris For CCTV Cameras 1/3", CS, 3.0-8.0mm, F1.0-360, AI, plugged (25cm lead) day/night. 1/3", CS, 3-8mm, F1.0-360, AI, P (25cm lead) day/night seen here... http://www.norbain.co.uk/products//ref:0240340/ If you have any comments I`d like to hear them please. Thanks, Nigel. Have you used this camera before? I have the 473 12V DC model. In night mode it removes the IR filter and replaces it with one that has a refractive index for visible light, although it as night - due to the super exwave sensor that is extremly sensitive to any light. It is only sensitive a little to near IR, i.e. 730nm and not 840nm so much and not at all to 950nm+ Link to comment Share on other sites More sharing options...
Guest nhastie Posted March 3, 2006 Share Posted March 3, 2006 Have you used this camera before?I have the 473 12V DC model. In night mode it removes the IR filter and replaces it with one that has a refractive index for visible light, although it as night - due to the super exwave sensor that is extremly sensitive to any light. It is only sensitive a little to near IR, i.e. 730nm and not 840nm so much and not at all to 950nm+ Sorry Stevey. Is that a good or a bad thing ? Im a CCTV newbie Link to comment Share on other sites More sharing options...
Guest stevey Posted March 3, 2006 Share Posted March 3, 2006 Sorry Stevey. Is that a good or a bad thing ? Im a CCTV newbie It would mean that you would have to use infrared lighting that looks like a solid red bulb when on, i.e. overt (opposite of covert). You can not effectivly use semi-covert infrared lighting as with a dull red glow from the bulb or even covert infrared which emits no visible glow. Link to comment Share on other sites More sharing options...
Doktor Jon Posted March 3, 2006 Share Posted March 3, 2006 Strictly speaking, it would very much depend on what the camera is looking at, as to whether you could use higher IR frequency lighting. For example, if the camera is looking a short distance to a door, you could possibly use a 50 watt 730 nM (bright visible red output) lamp, or maybe a 200 watt 830nM (dull red glow) illuminator, or 500 watt 950nM (totally black light) unit. As the spectral sensitivity of the chip falls away, you have to rapidly increase the amount of light to compensate for the dropping sensitivity. At short distances, it isn't a problem, but if the camera is required to view a target 50 metres away, than the covert option starts to become impractical (but not necessarily impossible). Link to comment Share on other sites More sharing options...
Guest nhastie Posted March 4, 2006 Share Posted March 4, 2006 Now I understand, and thanks very much for taking the time to explain it for me ! Link to comment Share on other sites More sharing options...
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