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

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

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.

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.

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.

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+

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

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.

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).

Now I understand, and thanks very much for taking the time to explain it for me !