The new 4k cams with the 1/1.2 sensors perform well in both day and low light conditions.
That is a very interesting observation, thanks for feedback
Its nonsense...They would be nuts to ship a bunch of out of focus cameras - it would result in many returns. The depth of field may be longer for the F=1.0 cameras so you will need to be further out for a super crisp image.That is a very interesting observation, thanks for feedback
no...he is saying that they arrive with the lens out of focus. You are referring to motion blur.
Do you know that the 4k-x doesn't pick up IR light? I think this would drive the 5442 vs. 4k-x decision for whatever the specific situation is.
Yes indeed, appreciate the heads up though. It was looking like maybe Dahua and Hikvision were pushing the non-IR cameras, they see this as the future due to better ID of suspects, vehicles etc. I have some locations which the colour cameras would work well, others maybe not so much.
Well, everyone feel free to look at the nonsense here:
There are plenty of 5442 cameras that look the same way out of the thousands they ship there are some that are not properly focused. .... I personally have a 5442 that was not focused properly from the factory. The factory focus is not always perfect but you have zero data to compare the two... Other than a single image posted from a camera that is completely different than the one I'm describing. You have linked to a dual lens camera. It's nonsense to claim that they're all like that or else they would be returned. There are other brands like hike vision who also have similar setups to say they're all like that is false but understandable because of your limited experience with these cams. In fact you have zero experience with a camera in question.Well, everyone feel free to look at the nonsense here:
Worlds First Review - Dahua DH-IPC-HFW5449T1-ASE+D2 - Dual Lens Full Color 2.0
Much better - 4K-Tipcamtalk.com
The camera in question there uses the 1/1.8" sensor on a 3.6mm f=1.0 lens. Same as mine.
The "welcome sign" on the other side of the road is surely far enough to be in the depth of field. Super crisp? Not in my book.
I have two copies of the same 2.8mm camera. And their focus is adjusted differently. I can easily set them up next to each other and see through one and the other. One cam has the depth of field nearer to the cam than the other. So there is quite some difference between them. This doesn't bother me, as it is actually beneficial for my different uses. They are very nice lenses. But they demonstrate the variability in factory focus settings. And with f=1.0 lenses, you don't have much tolerance, because the DOF is short. I also have a slightly blurry 3.6mm camera of the same F=1.0 series (worse picture). So I have three of these F=1.0 cams.
Not even that. It uses different size sensors. Later models use same size sensors. During the day, the image quality does not change if you block the IR lens or not ... just read on, there are sample pics. And the D2 uses the same color optics than my lens uses.
Thanks, yes I have a couple of 2.8mm 5442's and would probably say the image looks a bit sharper than the varifocal, if you want to spread the IR wider, try using some diffuser film/vinyl, otherwise known as frosted glass film
it works a treat.
Again you have linked to the WRONG camera, this is not the single lens 1/1.2" cameras that I referenced. You are simply mistaken and confused. You are comparing an old design of a dual lens camera posted 3 years ago when the camera had different sized sensors and the camera needs to use firmware to focus, and claiming that it proves that a single lens camera with a 1/1.2 sensor will be blurry. Simply idiotic. FYI you can adjust the fixed lens focus if it is not to your liking.
I try and do the same. Love my 5442's. Where I can I use a fixed lens as they let in more light. That said I have a couple of the newer 5442H-ZHE VF bullets and the nighttime IR image is every bit as good as my previous gen 5442 fixed lens ones.
