Help with CCTV system

I need to renew some cameras on a CCTV system and need to know the difference between the following...

Analogue/HD-SDI/IP CCTV

Any help would be greatly appreciated

Plenty of useful info on 'you tube'

What equipment are you currently using ?
What distance are you trying to cover and what is the lighting like in those areas ? It will make a big difference as to what specification of camera to use .

ip cameras have a much better picture quality , more expensive than analogue but worth it if you need crisp pictures for identification purposes .

Hd-sdi are really just higher quality versions of analogue .

What equipment are you currently using ?
What distance are you trying to cover and what is the lighting like in those areas ? It will make a big difference as to what specification of camera to use .

ip cameras have a much better picture quality , more expensive than analogue but worth it if you need crisp pictures for identification purposes .

Hd-sdi are really just higher quality versions of analogue .

Are you saying its just the quality is different ? Are all the connections the same ? We have a system in one of our businesses but could do with an upgrade, some of the dome covers are missing and I was going to buy new to replace. Ideally I would like night vision on the system however the lighting is good normally. All indoors btw!

What equipment are you currently using ?
What distance are you trying to cover and what is the lighting like in those areas ? It will make a big difference as to what specification of camera to use .

ip cameras have a much better picture quality , more expensive than analogue but worth it if you need crisp pictures for identification purposes .

Hd-sdi are really just higher quality versions of analogue .

Are you saying its just the quality is different ? Are all the connections the same ? We have a system in one of our businesses but could do with an upgrade, some of the dome covers are missing and I was going to buy new to replace. Ideally I would like night vision on the system however the lighting is good normally. All indoors btw!

Between analogue and HD yes . On Ip cameras the quality is better again .
You will not be able to put an ip camera onto an analogue system . But you can put certain analogue cameras onto ip systems.

The connections will depend on the wiring , if it's in cat5 they will normally have used balluns for the termination point . If they are wired in shotgun/coax they will be BNC connections .

You will also need to keep in mind how the cameras are powered , weather locally or from a PSU and what power they require or you could end up blowing the replacement cameras and costing yourself a lot of money .

Most cameras come with IR which unless it's a large warehouse will be sufficient to light most rooms at night .

What equipment are you currently using ?
What distance are you trying to cover and what is the lighting like in those areas ? It will make a big difference as to what specification of camera to use .

ip cameras have a much better picture quality , more expensive than analogue but worth it if you need crisp pictures for identification purposes .

Hd-sdi are really just higher quality versions of analogue .

Are you saying its just the quality is different ? Are all the connections the same ? We have a system in one of our businesses but could do with an upgrade, some of the dome covers are missing and I was going to buy new to replace. Ideally I would like night vision on the system however the lighting is good normally. All indoors btw!

Between analogue and HD yes . On Ip cameras the quality is better again .
You will not be able to put an ip camera onto an analogue system . But you can put certain analogue cameras onto ip systems.

The connections will depend on the wiring , if it's in cat5 they will normally have used balluns for the termination point . If they are wired in shotgun/coax they will be BNC connections .

You will also need to keep in mind how the cameras are powered , weather locally or from a PSU and what power they require or you could end up blowing the replacement cameras and costing yourself a lot of money .

Most cameras come with IR which unless it's a large warehouse will be sufficient to light most rooms at night .

One thing I will say is stay away from the hd if your cabling is not up to scratch . Any dodgy cable Knicks or joints can cause big problems and.normally ends up with a rewire . Plus you may need to change your dvr but keep the cameras

Thanks, I will take a closer look at the current damaged ones and replace accordingly.