CVI,TVI & AHD cameras

[the toss 0]

Up til now any installation of HD analogue cameras has been pretty run of the mill domestic or small commecial. But I have a job upgrading an existing system of 42 cameras in a fairly large distribution warehouse. The existing system utilises some specialist cameras besides general overview of other areas. There are two NPR cameras running 60mm lens's for close ups of number plates from a mounting position 100m back from the gates. There are three used for item tracking on the loading conveyor system. These cameras are not only recorded but used in real time on a day to day basis. ie the number plates are manually logged and approved for entry to the site before the gate is opened. Therefore the digital zoom on playback is of little use , what is needed is a realtime close up view of the numberplates as they seek entry. (hence the 60mm lens)

After doing a fairly comprehensive search of distributors in Australia , it seems the only choice of analogue HD cameras (CVI,TVI or AHD) is a fixed 3.8mm lens , a 2.8 - 12mm varifocal , not counting the ptz models. So it seems that a replacement in analogue HD is not available for anything above 12mm.

So what I'm asking is - anybody know where I can get an analogue HD camera with a lens bigger than 12mm ?

[ak357 0]

Up til now any installation of HD analogue cameras has been pretty run of the mill domestic or small commecial. But I have a job upgrading an existing system of 42 cameras in a fairly large distribution warehouse. The existing system utilises some specialist cameras besides general overview of other areas. There are two NPR cameras running 60mm lens's for close ups of number plates from a mounting position 100m back from the gates. There are three used for item tracking on the loading conveyor system. These cameras are not only recorded but used in real time on a day to day basis. ie the number plates are manually logged and approved for entry to the site before the gate is opened. Therefore the digital zoom on playback is of little use , what is needed is a realtime close up view of the numberplates as they seek entry. (hence the 60mm lens)

After doing a fairly comprehensive search of distributors in Australia , it seems the only choice of analogue HD cameras (CVI,TVI or AHD) is a fixed 3.8mm lens , a 2.8 - 12mm varifocal , not counting the ptz models. So it seems that a replacement in analogue HD is not available for anything above 12mm.

So what I'm asking is - anybody know where I can get an analogue HD camera with a lens bigger than 12mm ?

 

What about Hybrid system

meaning IP and Analog

Example: Avigilon Encoders and IP cam

by the way Avigilon has Box IP 4-82 mm ( 2MP)

[lavender yang 0]

Hi,

 

Good day!

 

We have HD Megapixel camera(AHD+TVI+CVI), there are 4/6/8/12/16mm lens for your selection, support PAL/NTSC pattern, you just need one pc?

 

We also have AHD MEGAPIXEL CAMERAL with 4/6/8/12/16mm lens.

 

Have a nice day!

[the toss 0]

So why is 16mm lens the biggest? Are they relying on the fact that being HD the digital zoom can do the job of large lens's. If that is the case why have ANY HD camera with a varifocal lens

[toro 0]

Try to find some long range camera, should be in Bullet ones.

That will do up to 50 mm usually.

[Securame 0]

We sell one model HDCVI 1080p 5-50mm lens. You can find them if you look enough, they are just not common.

 

But if going to HDCVI/HDTVI/AHD, you can just keep those "rare" cameras in analog, if they already do their job.

[the toss 0]

Where do you source yours from?

[tomcctv 190]

Hi. A box camera is the usual kit for a 50mm lens ... Use there existing lens with something like the dahua cvi box

[FranciscoNET 0]

a 30x Pan Tilt Zoom HD-TVI was the most I was able to find.

 

However I found something that MAY be of use for you:

 

http://www.ebay.com/itm/6-60-mm-MANUAL-IRIS-IP-MEGA-PIXEL-Camera-CS-Mount-Lens-/350305125086?hash=item518fd002de:m:mDB4SZsh7U7_ty2imFLkeQw

 

"BRAND NEW 6-60mm MANUAL IRIS SEMI-WIDE TO SUPER NARROW DETAILED VIEW HIGH GRADE GLASS CCTV C/CS MOUNT LENS FOR YOUR CCTV CAMERA.

MANUALLY ADJUST THE FOCUS, IRIS, & ZOOM TO YOUR EXACT NEEDS."

 

"GREAT FOR IP CAMERAS, & MEGA PIXEL CAMS THAT DO NOT OFFER THE AUTO IRIS 4 PIN CABLE CONNECTION."

Says the item's description.

 

This lens only costs $79 which is again not bad for experimenting purposes.