Sphinxicus
Getting comfortable
Hi All,
In the process of adding a few cameras and initially was going to plumb for the well reccomended Dahua 5442 turrets, specifically the Varifocal (IPC-HDW5442T-ZE) so i can zoom tighter to specific areas.
I asked my local installer for a quote for multiples of the IPC-HDW5442T-ZE to see if his prices came close to Andy's and he came back stating that the IPC-HDW5442T-ZE was EOL. Initially he did seem to be trying to push the Hikvision cameras and I can see the IPC-HDW5442T-ZE camera on the dahua website still so I am unsure if it is EOL or if it is just a further push towards the Hik's.
Anyway, he kindly loaned me a 2.8mm 4MP ColorVu camera DS-2CD2347G2-L to see if i have enough ambient light around the property to make use of it without the need for additional lighting. I currently have it sitting inside pointing out a window just to test it. I set the exposure settings to 1/200, dropped the gain down to 50 and left everything else standard.
I have done plenty of walk tests at night and i have to say im very impressed. No bluring althought the 2.8mm lens is far too wide. My only light source apart from moonlight is streetlights. I have no interest in using the onboard LED's. The size of the camera is massive when i compare it to my HDW2231R-ZS!
So to my quandary.
I'm not sure if i am comfortable on relying on streetlights (which i have no control over when bulbs or daylight sensors go faulty) and would liike to have the option to fall back onto IR ilumination if this happens. Hence looking at the Dahua 5442T.
Looking at the specs of the Dahua 5442T Fixed lens and varifocal. I can see that they have the same sized sensor 1/1.8" and a slightly smaller apature (F1.6 for fixed & F1.8 for varifocal). The min lux rating seems miles apart compared to the ColorVu.
ColorVu = 0.0005 Lux @ (F1.0, AGC ON) - I'm assuming this is Auto Gain Control which us users have no access to.
2.8mm 5442T = 0.002 @ F1.6
Varifocal 5442T = 0.003 @ F1.8
I really like the ability of the Hik to maintain a good colour picture at night.
Questions
Is the Lux value correct on the ColorVu or is that a typo? I.e. does difference in apature from F1.6 to F1 really make THAT much of a difference?
Is the fixed version of the Dahua 5442 able to get anywhere close to the nighttime performance of the ColorVu without falling back to IR?
Is there a Hikvision mount equivilent to the Dahua PFA230-W?
Is there a Dahua equivilent to the 4MP ColorVu?
Is the IPC-HDW5442T-ZE EOL? If so where can i find the EOL dates?
Thanks for reading.
In the process of adding a few cameras and initially was going to plumb for the well reccomended Dahua 5442 turrets, specifically the Varifocal (IPC-HDW5442T-ZE) so i can zoom tighter to specific areas.
I asked my local installer for a quote for multiples of the IPC-HDW5442T-ZE to see if his prices came close to Andy's and he came back stating that the IPC-HDW5442T-ZE was EOL. Initially he did seem to be trying to push the Hikvision cameras and I can see the IPC-HDW5442T-ZE camera on the dahua website still so I am unsure if it is EOL or if it is just a further push towards the Hik's.
Anyway, he kindly loaned me a 2.8mm 4MP ColorVu camera DS-2CD2347G2-L to see if i have enough ambient light around the property to make use of it without the need for additional lighting. I currently have it sitting inside pointing out a window just to test it. I set the exposure settings to 1/200, dropped the gain down to 50 and left everything else standard.
I have done plenty of walk tests at night and i have to say im very impressed. No bluring althought the 2.8mm lens is far too wide. My only light source apart from moonlight is streetlights. I have no interest in using the onboard LED's. The size of the camera is massive when i compare it to my HDW2231R-ZS!
So to my quandary.
I'm not sure if i am comfortable on relying on streetlights (which i have no control over when bulbs or daylight sensors go faulty) and would liike to have the option to fall back onto IR ilumination if this happens. Hence looking at the Dahua 5442T.
Looking at the specs of the Dahua 5442T Fixed lens and varifocal. I can see that they have the same sized sensor 1/1.8" and a slightly smaller apature (F1.6 for fixed & F1.8 for varifocal). The min lux rating seems miles apart compared to the ColorVu.
ColorVu = 0.0005 Lux @ (F1.0, AGC ON) - I'm assuming this is Auto Gain Control which us users have no access to.
2.8mm 5442T = 0.002 @ F1.6
Varifocal 5442T = 0.003 @ F1.8
I really like the ability of the Hik to maintain a good colour picture at night.
Questions
Is the Lux value correct on the ColorVu or is that a typo? I.e. does difference in apature from F1.6 to F1 really make THAT much of a difference?
Is the fixed version of the Dahua 5442 able to get anywhere close to the nighttime performance of the ColorVu without falling back to IR?
Is there a Hikvision mount equivilent to the Dahua PFA230-W?
Is there a Dahua equivilent to the 4MP ColorVu?
Is the IPC-HDW5442T-ZE EOL? If so where can i find the EOL dates?
Thanks for reading.
