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is this really a digital ccd camera?

Author
20 Nov 2006 3:54 PM
computar2006
I recently bought this camera:

http://www.2mcctv.com/specs/LTC%200335.pdf

Bosch LTC 0335/20 1/3" IT CCD B/W Camera, 1/3"  IT CCD B/W Camera,
380TVL Standard Resolution, Dual Voltage, Backlight Compensation, DC &
Video Auto-Iris Lens Compatible, Line Lock Synch
Security Camera features:

    * 1/3"  IT CCD B/W Camera
    * High Sensitivity
    * Advanced Digital Signal Processing
    * Built on Bilinx Technology
    * 380TVL
    * Auto Detection of Lens Type
    * Dual Voltage
    * Easy to Install



It says "digital ccd" on the side of the camera, but it has a BNC
output on the back.  I've tried capturing through an analogue capture
card on my PC and I can see interlacing when capturing in AVI
(uncompressed).  I suspect this is an analogue cctv camera.

If this camera is digital, how can I get the digital quality?  The
image quality with normal street lighting is very good, but I can't
read car number plates.  They seem distored and unreadable.  Would I be
better off capturing to video tape?

Author
21 Nov 2006 7:22 PM
Tzortzakakis Dimitrios
Show quote Hide quote
? "computar2006" <google.t***@ntlworld.com> ?????? ??? ??????
news:1164038043.694460.199990@m7g2000cwm.googlegroups.com...
> I recently bought this camera:
>
> http://www.2mcctv.com/specs/LTC%200335.pdf
>
> Bosch LTC 0335/20 1/3" IT CCD B/W Camera, 1/3"  IT CCD B/W Camera,
> 380TVL Standard Resolution, Dual Voltage, Backlight Compensation, DC &
> Video Auto-Iris Lens Compatible, Line Lock Synch
> Security Camera features:
>
>     * 1/3"  IT CCD B/W Camera
>     * High Sensitivity
>     * Advanced Digital Signal Processing
>     * Built on Bilinx Technology
>     * 380TVL
>     * Auto Detection of Lens Type
>     * Dual Voltage
>     * Easy to Install
>
>
>
> It says "digital ccd" on the side of the camera, but it has a BNC
> output on the back.  I've tried capturing through an analogue capture
> card on my PC and I can see interlacing when capturing in AVI
> (uncompressed).  I suspect this is an analogue cctv camera.
>
> If this camera is digital, how can I get the digital quality?  The
> image quality with normal street lighting is very good, but I can't
> read car number plates.  They seem distored and unreadable.  Would I be
> better off capturing to video tape?
>
This is certainly a B&W (black and white or monochrome) security camera, not
a real camcorder.And yes, it has only an analogue output(Composite video,
1.0 V pp (peak to peak) 75 ohms.Digital signal processing does not necessary
mean that is camera is what we would call a digital one, also a mini DV or
DVD camera.
Hope this helps,



--
Tzortzakakis Dimitrios
major in electrical engineering
mechanized infantry reservist
dimtzort AT otenet DOT gr
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Author
23 Nov 2006 2:22 AM
computar2006
Tzortzakakis Dimitrios wrote:
Show quoteHide quote
> ? "computar2006" <google.t***@ntlworld.com> ?????? ??? ??????
> news:1164038043.694460.199990@m7g2000cwm.googlegroups.com...
> > I recently bought this camera:
> >
> > http://www.2mcctv.com/specs/LTC%200335.pdf
> >
> > Bosch LTC 0335/20 1/3" IT CCD B/W Camera, 1/3"  IT CCD B/W Camera,
> > 380TVL Standard Resolution, Dual Voltage, Backlight Compensation, DC &
> > Video Auto-Iris Lens Compatible, Line Lock Synch
> > Security Camera features:
> >
> >     * 1/3"  IT CCD B/W Camera
> >     * High Sensitivity
> >     * Advanced Digital Signal Processing
> >     * Built on Bilinx Technology
> >     * 380TVL
> >     * Auto Detection of Lens Type
> >     * Dual Voltage
> >     * Easy to Install
> >
> >
> >
> > It says "digital ccd" on the side of the camera, but it has a BNC
> > output on the back.  I've tried capturing through an analogue capture
> > card on my PC and I can see interlacing when capturing in AVI
> > (uncompressed).  I suspect this is an analogue cctv camera.
> >
> > If this camera is digital, how can I get the digital quality?  The
> > image quality with normal street lighting is very good, but I can't
> > read car number plates.  They seem distored and unreadable.  Would I be
> > better off capturing to video tape?
> >
> This is certainly a B&W (black and white or monochrome) security camera, not
> a real camcorder.And yes, it has only an analogue output(Composite video,
> 1.0 V pp (peak to peak) 75 ohms.Digital signal processing does not necessary
> mean that is camera is what we would call a digital one, also a mini DV or
> DVD camera.
> Hope this helps,
>
>
>
> --
> Tzortzakakis Dimitrios
> major in electrical engineering
> mechanized infantry reservist
> dimtzort AT otenet DOT gr

Yes, many thanks.
Author
25 Nov 2006 3:23 PM
AnthonyR
Show quote Hide quote
"computar2006" <google.t***@ntlworld.com> wrote in message
news:1164038043.694460.199990@m7g2000cwm.googlegroups.com...
>I recently bought this camera:
>
> http://www.2mcctv.com/specs/LTC%200335.pdf
>
> Bosch LTC 0335/20 1/3" IT CCD B/W Camera, 1/3"  IT CCD B/W Camera,
> 380TVL Standard Resolution, Dual Voltage, Backlight Compensation, DC &
> Video Auto-Iris Lens Compatible, Line Lock Synch
> Security Camera features:
>
>    * 1/3"  IT CCD B/W Camera
>    * High Sensitivity
>    * Advanced Digital Signal Processing
>    * Built on Bilinx Technology
>    * 380TVL
>    * Auto Detection of Lens Type
>    * Dual Voltage
>    * Easy to Install
>
>
>
> It says "digital ccd" on the side of the camera, but it has a BNC
> output on the back.  I've tried capturing through an analogue capture
> card on my PC and I can see interlacing when capturing in AVI
> (uncompressed).  I suspect this is an analogue cctv camera.
>
> If this camera is digital, how can I get the digital quality?  The
> image quality with normal street lighting is very good, but I can't
> read car number plates.  They seem distored and unreadable.  Would I be
> better off capturing to video tape?
>

It has digital signal processing, which adjusts I guess to lens type, notice
the lens is sold separately.
As Dimitri said, it's just a B&W security camera, not a digital camcorder.
Did you add the lens? Would a higher zoom lens offer better reading of
license plates for you maybe, just an idea.

AnthonyR.
Author
3 Dec 2006 7:06 PM
computar2006
AnthonyR wrote:
Show quoteHide quote
> "computar2006" <google.t***@ntlworld.com> wrote in message
> news:1164038043.694460.199990@m7g2000cwm.googlegroups.com...
> >I recently bought this camera:
> >
> > http://www.2mcctv.com/specs/LTC%200335.pdf
> >
> > Bosch LTC 0335/20 1/3" IT CCD B/W Camera, 1/3"  IT CCD B/W Camera,
> > 380TVL Standard Resolution, Dual Voltage, Backlight Compensation, DC &
> > Video Auto-Iris Lens Compatible, Line Lock Synch
> > Security Camera features:
> >
> >    * 1/3"  IT CCD B/W Camera
> >    * High Sensitivity
> >    * Advanced Digital Signal Processing
> >    * Built on Bilinx Technology
> >    * 380TVL
> >    * Auto Detection of Lens Type
> >    * Dual Voltage
> >    * Easy to Install
> >
> >
> >
> > It says "digital ccd" on the side of the camera, but it has a BNC
> > output on the back.  I've tried capturing through an analogue capture
> > card on my PC and I can see interlacing when capturing in AVI
> > (uncompressed).  I suspect this is an analogue cctv camera.
> >
> > If this camera is digital, how can I get the digital quality?  The
> > image quality with normal street lighting is very good, but I can't
> > read car number plates.  They seem distored and unreadable.  Would I be
> > better off capturing to video tape?
> >
>
> It has digital signal processing, which adjusts I guess to lens type, notice
> the lens is sold separately.
> As Dimitri said, it's just a B&W security camera, not a digital camcorder.
> Did you add the lens? Would a higher zoom lens offer better reading of
> license plates for you maybe, just an idea.
>
> AnthonyR.

Yes, I added a computar 3.5-8mm varifocal lens with baader IR cut
filter.  The problem with higher magnifications is less light at night.
Actually, I don't think analogue cctv cameras are much good because of
the composite output, ie: low bandwidth, and inputting this to to a
computer card makes things worse because of interlaced frames from the
camera.  I get better results using my USB Toucam webcamera as a CCTV
camera.

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