Dahua Starlight STARVIS with more MP?

pcunite

pcunite

Getting the hang of it
Jan 28, 2018
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Hello,

Looking to put together a 28 camera system (8 outside, 20 inside).

Everyone is going crazy around here for the Dahua Starlight IPC-HDW5231R-ZE. I will definitely try one of those out! However, at only 2MP, wouldn't the 4MP IPC-HDW5431R-ZE be an upgrade? It does not have the STARVIS (Starlight) feature (which I think is just big pixels). Any higher res Starlight options?

I really like the varifocal feature as I don't know the focal length I'll need for each interior room. Comparing Dahua to Axis M3105-LVE and Hikvision DS-2CD2342WD-I turrets.
 
Starlight and STARVIS are two separate things. A camera can have both or only one of them.
STARVIS is the sensor but they have different sensitivitys. What you should look at is the LUX numbers. Lower lux is better.
I am quite happy with the epoe 8MP Starvis but they are nowhere near as good in low light as the 2MP Starvis "Starlight" branded cams. It all depends if the IR can handle the dark then it works fine. I have several cams pointing in same area so IR light is good.

I Quote bigredfish

bigredfish said:
**** Dahua places the "Starlight" name on cameras that have anything .009 or lower.
.01 < Not Starlight
.009 < Starlight
****
Click to expand...
 
Maybe with so many cameras in the system you can have a mix of 2 & 4 MP? Check out the Cliff Notes linked in my signature; may provide some food for thought


Sent from my iPhone using Tapatalk
 
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Not to go off-topic here, but 28-camera system is a lot, is this for residential or commercial install?

pcunite said:
Hello,

Looking to put together a 28 camera system (8 outside, 20 inside).

Everyone is going crazy around here for the Dahua Starlight IPC-HDW5231R-ZE. I will definitely try one of those out! However, at only 2MP, wouldn't the 4MP IPC-HDW5431R-ZE be an upgrade? It does not have the STARVIS (Starlight) feature (which I think is just big pixels). Any higher res Starlight options?

I really like the varifocal feature as I don't know the focal length I'll need for each interior room. Comparing Dahua to Axis M3105-LVE and Hikvision DS-2CD2342WD-I turrets.
Click to expand...
 
pcunite said:
Hello,

Looking to put together a 28 camera system (8 outside, 20 inside).

Everyone is going crazy around here for the Dahua Starlight IPC-HDW5231R-ZE. I will definitely try one of those out! However, at only 2MP, wouldn't the 4MP IPC-HDW5431R-ZE be an upgrade? It does not have the STARVIS (Starlight) feature (which I think is just big pixels). Any higher res Starlight options?

I really like the varifocal feature as I don't know the focal length I'll need for each interior room. Comparing Dahua to Axis M3105-LVE and Hikvision DS-2CD2342WD-I turrets.
Click to expand...

If it's a commercial install, will the scenes the cameras will be watching inside always be lit? If so 4mp would perform better. If you need to watch the scenes at night though, a 2mp will perform better. More megapixels does not mean better overall performance.
 
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pcunite said:
I will definitely try one of those out! However, at only 2MP, wouldn't the 4MP IPC-HDW5431R-ZE be an upgrade?
Click to expand...
I agree with @mlapaglia's above. Starlight's almost always have the best image quality in low-light conditions, which is why so many folks here use them outside. If the best low-light performance isn't a requirement (i.e. an indoor location that has OK lighting 24/7), then a 4MP camera may be a better choice for that location.
 
Commercial install, two buildings with close proximity to each other. The interior lighting will be good during business hours.
 
I think i would go with a STARVIS sensor in all lighting conditions. they are better sensors (there are several of them). I would go with 2MP Starlight (just a term by Dahua for better than an arbitrary low light LUX) in most outdoor situations. Well lit indoor conditions can benefit from higher pixel count, but rarely need them. I would think that the 87 deg 4K Starvis fixed focus mini dome and H265 would give a good amount of pixels per foot at 30 feet, which is very handy in a business sized room.

Speaking of business solutions. I really wish Dahua would make a Z12 in a turret or mini dome. The Z5 is too narrow (35 deg) for most situations by a few degrees, and it would be nice to zoom past the Z model in several situations without changing parts.
 
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I recall @nayr speaking of limitations due to foam factor and technical limitations of fitting such a lens

bug99 said:
I think i would go with a STARVIS sensor in all lighting conditions. they are better sensors (there are several of them). I would go with 2MP Starlight (just a term by Dahua for better than an arbitrary low light LUX) in most outdoor situations. Well lit indoor conditions can benefit from higher pixel count, but rarely need them. I would think that the 87 deg 4K Starvis fixed focus mini dome and H265 would give a good amount of pixels per foot at 30 feet, which is very handy in a business sized room.

Speaking of business solutions. I really wish Dahua would make a Z12 in a turret or mini dome. The Z5 is too narrow (35 deg) for most situations by a few degrees, and it would be nice to zoom past the Z model in several situations without changing parts.
Click to expand...
 
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